56630402357 has 16 divisors (see below), whose sum is σ = 57493663920. Its totient is φ = 55773560832.

The previous prime is 56630402347. The next prime is 56630402447. The reversal of 56630402357 is 75320403665.

It can be written as a sum of positive squares in 8 ways, for example, as 142898116 + 56487504241 = 11954^2 + 237671^2 .

It is a cyclic number.

It is not a de Polignac number, because 56630402357 - 2⁴ = 56630402341 is a prime.

It is a super-2 number, since 2×56630402357² (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 (56630402347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20303519 + ... + 20306307.

It is an arithmetic number, because the mean of its divisors is an integer number (3593353995).

Almost surely, 2^56630402357 is an apocalyptic number.

It is an amenable number.

56630402357 is a deficient number, since it is larger than the sum of its proper divisors (863261563).

56630402357 is a wasteful number, since it uses less digits than its factorization.

56630402357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832.

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 56630402357 in words is "fifty-six billion, six hundred thirty million, four hundred two thousand, three hundred fifty-seven".