56637681275 has 24 divisors (see below), whose sum is σ = 80397830400. Its totient is φ = 38772358560.

The previous prime is 56637681193. The next prime is 56637681277. The reversal of 56637681275 is 57218673665.

It is not a de Polignac number, because 56637681275 - 2²⁶ = 56570572411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56637681275.

It is not an unprimeable number, because it can be changed into a prime (56637681277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165329 + ... + 374978.

It is an arithmetic number, because the mean of its divisors is an integer number (3349909600).

Almost surely, 2^56637681275 is an apocalyptic number.

56637681275 is a deficient number, since it is larger than the sum of its proper divisors (23760149125).

56637681275 is a wasteful number, since it uses less digits than its factorization.

56637681275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540923 (or 540918 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 56.

The spelling of 56637681275 in words is "fifty-six billion, six hundred thirty-seven million, six hundred eighty-one thousand, two hundred seventy-five".