56649572 has 24 divisors (see below), whose sum is σ = 114993984. Its totient is φ = 23915232.

The previous prime is 56649563. The next prime is 56649581. The reversal of 56649572 is 27594665.

It is an interprime number because it is at equal distance from previous prime (56649563) and next prime (56649581).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13223 + ... + 16974.

It is an arithmetic number, because the mean of its divisors is an integer number (4791416).

Almost surely, 2^56649572 is an apocalyptic number.

It is an amenable number.

56649572 is an abundant number, since it is smaller than the sum of its proper divisors (58344412).

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

56649572 is a wasteful number, since it uses less digits than its factorization.

56649572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30275 (or 30273 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The square root of 56649572 is about 7526.5909946004. The cubic root of 56649572 is about 384.0598232173.

The spelling of 56649572 in words is "fifty-six million, six hundred forty-nine thousand, five hundred seventy-two".