56365631 has 12 divisors (see below), whose sum is σ = 66402720. Its totient is φ = 47698560.

The previous prime is 56365619. The next prime is 56365637. The reversal of 56365631 is 13656365.

It is a de Polignac number, because none of the positive numbers 2^k-56365631 is a prime.

It is a super-2 number, since 2×56365631² = 6354168716056322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56365591 and 56365600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56365637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3410 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (5533560).

Almost surely, 2^56365631 is an apocalyptic number.

56365631 is a deficient number, since it is larger than the sum of its proper divisors (10037089).

56365631 is a wasteful number, since it uses less digits than its factorization.

56365631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14654 (or 14647 counting only the distinct ones).

The product of its digits is 48600, while the sum is 35.

The square root of 56365631 is about 7507.7047757620. The cubic root of 56365631 is about 383.4170820587.

It can be divided in two parts, 5 and 6365631, that added together give a palindrome (6365636).

The spelling of 56365631 in words is "fifty-six million, three hundred sixty-five thousand, six hundred thirty-one".