56566315 has 32 divisors (see below), whose sum is σ = 77083776. Its totient is φ = 39536640.

The previous prime is 56566283. The next prime is 56566319. The reversal of 56566315 is 51366565.

It is a happy number.

It is not a de Polignac number, because 56566315 - 2⁵ = 56566283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56566319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234595 + ... + 234835.

It is an arithmetic number, because the mean of its divisors is an integer number (2408868).

Almost surely, 2^56566315 is an apocalyptic number.

56566315 is a deficient number, since it is larger than the sum of its proper divisors (20517461).

56566315 is a wasteful number, since it uses less digits than its factorization.

56566315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439.

The product of its digits is 81000, while the sum is 37.

The square root of 56566315 is about 7521.0581037511. The cubic root of 56566315 is about 383.8715820409.

The spelling of 56566315 in words is "fifty-six million, five hundred sixty-six thousand, three hundred fifteen".