56316131 has 2 divisors, whose sum is σ = 56316132. Its totient is φ = 56316130.

The previous prime is 56316101. The next prime is 56316137. The reversal of 56316131 is 13161365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56316131 - 2²² = 52121827 is a prime.

It is a super-2 number, since 2×56316131² = 6343013221618322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56316131.

It is not a weakly prime, because it can be changed into another prime (56316137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28158065 + 28158066.

It is an arithmetic number, because the mean of its divisors is an integer number (28158066).

Almost surely, 2^56316131 is an apocalyptic number.

56316131 is a deficient number, since it is larger than the sum of its proper divisors (1).

56316131 is an equidigital number, since it uses as much as digits as its factorization.

56316131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 56316131 is about 7504.4074382992. The cubic root of 56316131 is about 383.3048109003.

Adding to 56316131 its reverse (13161365), we get a palindrome (69477496).

It can be divided in two parts, 5 and 6316131, that added together give a palindrome (6316136).

The spelling of 56316131 in words is "fifty-six million, three hundred sixteen thousand, one hundred thirty-one".