255616502535 has 48 divisors (see below), whose sum is σ = 469440036000. Its totient is φ = 128225064960.

The previous prime is 255616502513. The next prime is 255616502539. The reversal of 255616502535 is 535205616552.

255616502535 is a `hidden beast` number, since 2 + 5 + 5 + 61 + 6 + 50 + 2 + 535 = 666.

It is not a de Polignac number, because 255616502535 - 2⁸ = 255616502279 is a prime.

It is a super-2 number, since 2×255616502535² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255616502539) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1062091 + ... + 1280339.

It is an arithmetic number, because the mean of its divisors is an integer number (9780000750).

Almost surely, 2^255616502535 is an apocalyptic number.

255616502535 is a deficient number, since it is larger than the sum of its proper divisors (213823533465).

255616502535 is a wasteful number, since it uses less digits than its factorization.

255616502535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219808 (or 219805 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 45.

The spelling of 255616502535 in words is "two hundred fifty-five billion, six hundred sixteen million, five hundred two thousand, five hundred thirty-five".