56316857 has 16 divisors (see below), whose sum is σ = 61102080. Its totient is φ = 51769872.

The previous prime is 56316851. The next prime is 56316859. The reversal of 56316857 is 75861365.

It is not a de Polignac number, because 56316857 - 2²⁰ = 55268281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56316851) 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, 63338 + ... + 64220.

It is an arithmetic number, because the mean of its divisors is an integer number (3818880).

Almost surely, 2^56316857 is an apocalyptic number.

It is an amenable number.

56316857 is a deficient number, since it is larger than the sum of its proper divisors (4785223).

56316857 is a wasteful number, since it uses less digits than its factorization.

56316857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012.

The product of its digits is 151200, while the sum is 41.

The square root of 56316857 is about 7504.4558097173. The cubic root of 56316857 is about 383.3064580192.

The spelling of 56316857 in words is "fifty-six million, three hundred sixteen thousand, eight hundred fifty-seven".