56356631 has 4 divisors (see below), whose sum is σ = 56800512. Its totient is φ = 55912752.

The previous prime is 56356627. The next prime is 56356633. The reversal of 56356631 is 13665365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56356631 - 2² = 56356627 is a prime.

It is a super-2 number, since 2×56356631² = 6352139715340322, 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 = 56356591 and 56356600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56356633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221750 + ... + 222003.

It is an arithmetic number, because the mean of its divisors is an integer number (14200128).

Almost surely, 2^56356631 is an apocalyptic number.

56356631 is a deficient number, since it is larger than the sum of its proper divisors (443881).

56356631 is a wasteful number, since it uses less digits than its factorization.

56356631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443880.

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

The square root of 56356631 is about 7507.1053675834. The cubic root of 56356631 is about 383.3966740113.

The spelling of 56356631 in words is "fifty-six million, three hundred fifty-six thousand, six hundred thirty-one".