56572724 has 12 divisors (see below), whose sum is σ = 106617924. Its totient is φ = 26110464.

The previous prime is 56572693. The next prime is 56572751. The reversal of 56572724 is 42727565.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32855824 + 23716900 = 5732^2 + 4870^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543917 + ... + 544020.

It is an arithmetic number, because the mean of its divisors is an integer number (8884827).

Almost surely, 2^56572724 is an apocalyptic number.

It is an amenable number.

56572724 is a deficient number, since it is larger than the sum of its proper divisors (50045200).

56572724 is a wasteful number, since it uses less digits than its factorization.

56572724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087954 (or 1087952 counting only the distinct ones).

The product of its digits is 117600, while the sum is 38.

The square root of 56572724 is about 7521.4841620521. The cubic root of 56572724 is about 383.8860791261.

The spelling of 56572724 in words is "fifty-six million, five hundred seventy-two thousand, seven hundred twenty-four".