56572665 has 16 divisors (see below), whose sum is σ = 90614976. Its totient is φ = 30139200.

The previous prime is 56572657. The next prime is 56572669. The reversal of 56572665 is 56627565.

It is a happy number.

It is not a de Polignac number, because 56572665 - 2³ = 56572657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56572669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19350 + ... + 22080.

It is an arithmetic number, because the mean of its divisors is an integer number (5663436).

Almost surely, 2^56572665 is an apocalyptic number.

It is an amenable number.

56572665 is a deficient number, since it is larger than the sum of its proper divisors (34042311).

56572665 is a wasteful number, since it uses less digits than its factorization.

56572665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4120.

The product of its digits is 378000, while the sum is 42.

The square root of 56572665 is about 7521.4802399528. The cubic root of 56572665 is about 383.8859456738.

The spelling of 56572665 in words is "fifty-six million, five hundred seventy-two thousand, six hundred sixty-five".