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53233311131 = 71113179073449
BaseRepresentation
bin110001100100111100…
…111101110110011011
312002101220212101122222
4301210330331312123
51333010211424011
640242142334255
73563112451550
oct614474756633
9162356771588
1053233311131
11206378a8610
12a39788a38b
1350348a2690
14280dd0aa27
1515b8672ddb
hexc64f3dd9b

53233311131 has 64 divisors (see below), whose sum is σ = 75783859200. Its totient is φ = 35987189760.

The previous prime is 53233311107. The next prime is 53233311139. The reversal of 53233311131 is 13111333235.

It is a cyclic number.

It is not a de Polignac number, because 53233311131 - 218 = 53233048987 is a prime.

It is a super-2 number, since 2×532333111312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53233311131.

It is not an unprimeable number, because it can be changed into a prime (53233311139) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15432695 + ... + 15436143.

It is an arithmetic number, because the mean of its divisors is an integer number (1184122800).

Almost surely, 253233311131 is an apocalyptic number.

53233311131 is a deficient number, since it is larger than the sum of its proper divisors (22550548069).

53233311131 is a wasteful number, since it uses less digits than its factorization.

53233311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404.

The product of its digits is 2430, while the sum is 26.

Adding to 53233311131 its reverse (13111333235), we get a palindrome (66344644366).

The spelling of 53233311131 in words is "fifty-three billion, two hundred thirty-three million, three hundred eleven thousand, one hundred thirty-one".

Divisors: 1 7 11 13 17 77 91 119 143 187 221 907 1001 1309 1547 2431 3449 6349 9977 11791 15419 17017 24143 37939 44837 58633 69839 82537 107933 129701 169609 200447 265573 313859 410431 493207 644963 762229 907907 1187263 1403129 2204917 3128243 3452449 4514741 5335603 8384519 15434419 21897701 34410673 40667159 53180131 58691633 240874711 284670113 372260917 447338749 584981441 691341703 3131371243 4094870087 4839391921 7604758733 53233311131