56612772331 has 2 divisors, whose sum is σ = 56612772332. Its totient is φ = 56612772330.

The previous prime is 56612772323. The next prime is 56612772383. The reversal of 56612772331 is 13327721665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56612772331 - 2³ = 56612772323 is a prime.

It is a super-2 number, since 2×56612772331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56612772131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28306386165 + 28306386166.

It is an arithmetic number, because the mean of its divisors is an integer number (28306386166).

Almost surely, 2^56612772331 is an apocalyptic number.

56612772331 is a deficient number, since it is larger than the sum of its proper divisors (1).

56612772331 is an equidigital number, since it uses as much as digits as its factorization.

56612772331 is an evil number, because the sum of its binary digits is even.

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

The spelling of 56612772331 in words is "fifty-six billion, six hundred twelve million, seven hundred seventy-two thousand, three hundred thirty-one".