56572651 has 4 divisors (see below), whose sum is σ = 59900472. Its totient is φ = 53244832.

The previous prime is 56572619. The next prime is 56572657. The reversal of 56572651 is 15627565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56572651 - 2⁵ = 56572619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56572651.

It is not an unprimeable number, because it can be changed into a prime (56572657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663885 + ... + 1663918.

It is an arithmetic number, because the mean of its divisors is an integer number (14975118).

Almost surely, 2^56572651 is an apocalyptic number.

56572651 is a deficient number, since it is larger than the sum of its proper divisors (3327821).

56572651 is a wasteful number, since it uses less digits than its factorization.

56572651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327820.

The product of its digits is 63000, while the sum is 37.

The square root of 56572651 is about 7521.4793092848. The cubic root of 56572651 is about 383.8859140071.

The spelling of 56572651 in words is "fifty-six million, five hundred seventy-two thousand, six hundred fifty-one".