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52551023200 = 2552132388691
BaseRepresentation
bin110000111100010010…
…001111101001100000
312000122101000120120121
4300330102033221200
51330111030220300
640050330450024
73540156220114
oct607422175140
9160571016517
1052551023200
1120317756595
12a227293914
134c56425200
142787463744
1515787ed81a
hexc3c48fa60

52551023200 has 108 divisors (see below), whose sum is σ = 138918132108. Its totient is φ = 19403404800.

The previous prime is 52551023153. The next prime is 52551023209. The reversal of 52551023200 is 232015525.

It is a happy number.

It is a super-2 number, since 2×525510232002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52551023209) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 59146 + ... + 329545.

It is an arithmetic number, because the mean of its divisors is an integer number (1286279001).

Almost surely, 252551023200 is an apocalyptic number.

52551023200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52551023200 is an abundant number, since it is smaller than the sum of its proper divisors (86367108908).

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

52551023200 is a wasteful number, since it uses less digits than its factorization.

52551023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388737 (or 388711 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 52551023200 its reverse (232015525), we get a palindrome (52783038725).

The spelling of 52551023200 in words is "fifty-two billion, five hundred fifty-one million, twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 65 80 100 104 130 160 169 200 208 260 325 338 400 416 520 650 676 800 845 1040 1300 1352 1690 2080 2600 2704 3380 4225 5200 5408 6760 8450 10400 13520 16900 27040 33800 67600 135200 388691 777382 1554764 1943455 3109528 3886910 5052983 6219056 7773820 9717275 10105966 12438112 15547640 19434550 20211932 25264915 31095280 38869100 40423864 50529830 62190560 65688779 77738200 80847728 101059660 126324575 131377558 155476400 161695456 202119320 252649150 262755116 310952800 328443895 404238640 505298300 525510232 656887790 808477280 1010596600 1051020464 1313775580 1642219475 2021193200 2102040928 2627551160 3284438950 4042386400 5255102320 6568877900 10510204640 13137755800 26275511600 52551023200