56613231631 has 8 divisors (see below), whose sum is σ = 61818110928. Its totient is φ = 51418056000.

The previous prime is 56613231613. The next prime is 56613231659. The reversal of 56613231631 is 13613231665.

It is a happy number.

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 56613231631 - 2⁹ = 56613231119 is a prime.

It is a super-2 number, since 2×56613231631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56613231671) 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 7 ways as a sum of consecutive naturals, for example, 2413710 + ... + 2437051.

It is an arithmetic number, because the mean of its divisors is an integer number (7727263866).

Almost surely, 2^56613231631 is an apocalyptic number.

56613231631 is a deficient number, since it is larger than the sum of its proper divisors (5204879297).

56613231631 is a wasteful number, since it uses less digits than its factorization.

56613231631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851833.

The product of its digits is 58320, while the sum is 37.

The spelling of 56613231631 in words is "fifty-six billion, six hundred thirteen million, two hundred thirty-one thousand, six hundred thirty-one".