56172455240 has 64 divisors (see below), whose sum is σ = 138402380160. Its totient is φ = 20348638720.

The previous prime is 56172455239. The next prime is 56172455347. The reversal of 56172455240 is 4255427165.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126989 + ... + 358428.

It is an arithmetic number, because the mean of its divisors is an integer number (2162537190).

Almost surely, 2^56172455240 is an apocalyptic number.

It is an amenable number.

56172455240 is an abundant number, since it is smaller than the sum of its proper divisors (82229924920).

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

56172455240 is a wasteful number, since it uses less digits than its factorization.

56172455240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485702 (or 485698 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 56172455240 in words is "fifty-six billion, one hundred seventy-two million, four hundred fifty-five thousand, two hundred forty".