56156724 has 36 divisors (see below), whose sum is σ = 152872356. Its totient is φ = 17278848.

The previous prime is 56156701. The next prime is 56156743. The reversal of 56156724 is 42765165.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6200100 + 49956624 = 2490^2 + 7068^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59529 + ... + 60464.

Almost surely, 2^56156724 is an apocalyptic number.

It is an amenable number.

56156724 is an abundant number, since it is smaller than the sum of its proper divisors (96715632).

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

56156724 is a wasteful number, since it uses less digits than its factorization.

56156724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120016 (or 120011 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 56156724 is about 7493.7790199605. The cubic root of 56156724 is about 382.9428115318.

The spelling of 56156724 in words is "fifty-six million, one hundred fifty-six thousand, seven hundred twenty-four".