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56725171344 = 24331097611583
BaseRepresentation
bin110100110101000101…
…010110110010010000
312102102021102021101000
4310311011112302100
51412133120440334
642020441142000
74045463000202
oct646505266220
9172367367330
1056725171344
11220699758a6
12abb118a900
13547014c05a
142a6198a772
15171eec3299
hexd35156c90

56725171344 has 160 divisors (see below), whose sum is σ = 164635891200. Its totient is φ = 18698480640.

The previous prime is 56725171271. The next prime is 56725171381. The reversal of 56725171344 is 44317152765.

56725171344 is a `hidden beast` number, since 56 + 7 + 251 + 7 + 1 + 344 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56725171344.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35833177 + ... + 35834759.

It is an arithmetic number, because the mean of its divisors is an integer number (1028974320).

Almost surely, 256725171344 is an apocalyptic number.

56725171344 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56725171344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82317945600).

56725171344 is an abundant number, since it is smaller than the sum of its proper divisors (107910719856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56725171344 is a wasteful number, since it uses less digits than its factorization.

56725171344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470 (or 2458 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 56725171344 in words is "fifty-six billion, seven hundred twenty-five million, one hundred seventy-one thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 109 144 216 218 327 432 436 654 761 872 981 1308 1522 1583 1744 1962 2283 2616 2943 3044 3166 3924 4566 4749 5232 5886 6088 6332 6849 7848 9132 9498 11772 12176 12664 13698 14247 15696 18264 18996 20547 23544 25328 27396 28494 36528 37992 41094 42741 47088 54792 56988 75984 82188 82949 85482 109584 113976 164376 165898 170964 172547 227952 248847 328752 331796 341928 345094 497694 517641 663592 683856 690188 746541 995388 1035282 1204663 1327184 1380376 1493082 1552923 1990776 2070564 2239623 2409326 2760752 2986164 3105846 3613989 3981552 4141128 4479246 4658769 4818652 5972328 6211692 7227978 8282256 8958492 9317538 9637304 10841967 11944656 12423384 14455956 17916984 18635076 19274608 21683934 24846768 28911912 32525901 35833968 37270152 43367868 57823824 65051802 74540304 86735736 130103604 131308267 173471472 260207208 262616534 393924801 520414416 525233068 787849602 1050466136 1181774403 1575699204 2100932272 2363548806 3151398408 3545323209 4727097612 6302796816 7090646418 9454195224 14181292836 18908390448 28362585672 56725171344