56156872 has 32 divisors (see below), whose sum is σ = 109163520. Its totient is φ = 27054720.

The previous prime is 56156851. The next prime is 56156873. The reversal of 56156872 is 27865165.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56156873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90708 + ... + 91324.

It is an arithmetic number, because the mean of its divisors is an integer number (3411360).

Almost surely, 2^56156872 is an apocalyptic number.

It is an amenable number.

56156872 is a deficient number, since it is larger than the sum of its proper divisors (53006648).

56156872 is a wasteful number, since it uses less digits than its factorization.

56156872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1017 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 56156872 is about 7493.7888948115. The cubic root of 56156872 is about 382.9431479444.

The spelling of 56156872 in words is "fifty-six million, one hundred fifty-six thousand, eight hundred seventy-two".