56856331 has 8 divisors (see below), whose sum is σ = 66044384. Its totient is φ = 47934720.

The previous prime is 56856311. The next prime is 56856343. The reversal of 56856331 is 13365865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56856331 - 2⁷ = 56856203 is a prime.

It is a super-2 number, since 2×56856331² = 6465284749563122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56856311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66150 + ... + 67003.

It is an arithmetic number, because the mean of its divisors is an integer number (8255548).

Almost surely, 2^56856331 is an apocalyptic number.

56856331 is a deficient number, since it is larger than the sum of its proper divisors (9188053).

56856331 is a wasteful number, since it uses less digits than its factorization.

56856331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133221.

The product of its digits is 64800, while the sum is 37.

The square root of 56856331 is about 7540.3137202639. The cubic root of 56856331 is about 384.5265017247.

The spelling of 56856331 in words is "fifty-six million, eight hundred fifty-six thousand, three hundred thirty-one".