56621052631 has 64 divisors (see below), whose sum is σ = 70653026304. Its totient is φ = 44642505600.

The previous prime is 56621052629. The next prime is 56621052637. The reversal of 56621052631 is 13625012665.

It is not a de Polignac number, because 56621052631 - 2¹ = 56621052629 is a prime.

It is a super-2 number, since 2×56621052631² (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 (56621052637) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57599766 + ... + 57600748.

It is an arithmetic number, because the mean of its divisors is an integer number (1103953536).

Almost surely, 2^56621052631 is an apocalyptic number.

56621052631 is a deficient number, since it is larger than the sum of its proper divisors (14031973673).

56621052631 is a wasteful number, since it uses less digits than its factorization.

56621052631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 56621052631 in words is "fifty-six billion, six hundred twenty-one million, fifty-two thousand, six hundred thirty-one".