56418713513 has 2 divisors, whose sum is σ = 56418713514. Its totient is φ = 56418713512.

The previous prime is 56418713509. The next prime is 56418713543. The reversal of 56418713513 is 31531781465.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53669598889 + 2749114624 = 231667^2 + 52432^2 .

It is a cyclic number.

It is not a de Polignac number, because 56418713513 - 2² = 56418713509 is a prime.

It is not a weakly prime, because it can be changed into another prime (56418713543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28209356756 + 28209356757.

It is an arithmetic number, because the mean of its divisors is an integer number (28209356757).

Almost surely, 2^56418713513 is an apocalyptic number.

It is an amenable number.

56418713513 is a deficient number, since it is larger than the sum of its proper divisors (1).

56418713513 is an equidigital number, since it uses as much as digits as its factorization.

56418713513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 44.

The spelling of 56418713513 in words is "fifty-six billion, four hundred eighteen million, seven hundred thirteen thousand, five hundred thirteen".