56310647731 has 24 divisors (see below), whose sum is σ = 64919522304. Its totient is φ = 48650734080.

The previous prime is 56310647699. The next prime is 56310647741. The reversal of 56310647731 is 13774601365.

It is not a de Polignac number, because 56310647731 - 2⁵ = 56310647699 is a prime.

It is a super-2 number, since 2×56310647731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56310647741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465870 + ... + 574156.

It is an arithmetic number, because the mean of its divisors is an integer number (2704980096).

Almost surely, 2^56310647731 is an apocalyptic number.

56310647731 is a deficient number, since it is larger than the sum of its proper divisors (8608874573).

56310647731 is a wasteful number, since it uses less digits than its factorization.

56310647731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108511 (or 108498 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 56310647731 in words is "fifty-six billion, three hundred ten million, six hundred forty-seven thousand, seven hundred thirty-one".