56643713031 has 8 divisors (see below), whose sum is σ = 77566165744. Its totient is φ = 36741867840.

The previous prime is 56643712981. The next prime is 56643713033. The reversal of 56643713031 is 13031734665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56643713031 - 2⁹ = 56643712519 is a prime.

It is a super-2 number, since 2×56643713031² (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 (56643713033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255151750 + ... + 255151971.

It is an arithmetic number, because the mean of its divisors is an integer number (9695770718).

Almost surely, 2^56643713031 is an apocalyptic number.

56643713031 is a deficient number, since it is larger than the sum of its proper divisors (20922452713).

56643713031 is a wasteful number, since it uses less digits than its factorization.

56643713031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510303761.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 56643713031 in words is "fifty-six billion, six hundred forty-three million, seven hundred thirteen thousand, thirty-one".