56433644731 has 4 divisors (see below), whose sum is σ = 56440262200. Its totient is φ = 56427027264.

The previous prime is 56433644723. The next prime is 56433644807. The reversal of 56433644731 is 13744633465.

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 56433644731 - 2³ = 56433644723 is a prime.

It is a super-2 number, since 2×56433644731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56433648731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3295926 + ... + 3313003.

It is an arithmetic number, because the mean of its divisors is an integer number (14110065550).

Almost surely, 2^56433644731 is an apocalyptic number.

56433644731 is a deficient number, since it is larger than the sum of its proper divisors (6617469).

56433644731 is an equidigital number, since it uses as much as digits as its factorization.

56433644731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617468.

The product of its digits is 2177280, while the sum is 46.

The spelling of 56433644731 in words is "fifty-six billion, four hundred thirty-three million, six hundred forty-four thousand, seven hundred thirty-one".