56731588 has 12 divisors (see below), whose sum is σ = 99595692. Its totient is φ = 28275680.

The previous prime is 56731573. The next prime is 56731607. The reversal of 56731588 is 88513765.

56731588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 55472704 = 1122^2 + 7448^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21103 + ... + 23638.

It is an arithmetic number, because the mean of its divisors is an integer number (8299641).

Almost surely, 2^56731588 is an apocalyptic number.

It is an amenable number.

56731588 is a deficient number, since it is larger than the sum of its proper divisors (42864104).

56731588 is a wasteful number, since it uses less digits than its factorization.

56731588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45062 (or 45060 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 56731588 is about 7532.0374401619. The cubic root of 56731588 is about 384.2450782884.

The spelling of 56731588 in words is "fifty-six million, seven hundred thirty-one thousand, five hundred eighty-eight".