56303811631 has 2 divisors, whose sum is σ = 56303811632. Its totient is φ = 56303811630.

The previous prime is 56303811611. The next prime is 56303811661. The reversal of 56303811631 is 13611830365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56303811631 - 2⁷ = 56303811503 is a prime.

It is a super-2 number, since 2×56303811631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56303811611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28151905815 + 28151905816.

It is an arithmetic number, because the mean of its divisors is an integer number (28151905816).

Almost surely, 2^56303811631 is an apocalyptic number.

56303811631 is a deficient number, since it is larger than the sum of its proper divisors (1).

56303811631 is an equidigital number, since it uses as much as digits as its factorization.

56303811631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 56303811631 in words is "fifty-six billion, three hundred three million, eight hundred eleven thousand, six hundred thirty-one".