56622831 has 32 divisors (see below), whose sum is σ = 82080000. Its totient is φ = 34610688.

The previous prime is 56622829. The next prime is 56622851. The reversal of 56622831 is 13822665.

It is not a de Polignac number, because 56622831 - 2¹ = 56622829 is a prime.

It is a super-2 number, since 2×56622831² = 6412289980909122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56622792 and 56622801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56622851) 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, 379945 + ... + 380093.

It is an arithmetic number, because the mean of its divisors is an integer number (2565000).

Almost surely, 2^56622831 is an apocalyptic number.

56622831 is a deficient number, since it is larger than the sum of its proper divisors (25457169).

56622831 is a wasteful number, since it uses less digits than its factorization.

56622831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343.

The product of its digits is 17280, while the sum is 33.

The square root of 56622831 is about 7524.8143498694. The cubic root of 56622831 is about 383.9993828658. Note that the first 3 decimals are identical.

The spelling of 56622831 in words is "fifty-six million, six hundred twenty-two thousand, eight hundred thirty-one".