56615715599 has 2 divisors, whose sum is σ = 56615715600. Its totient is φ = 56615715598.

The previous prime is 56615715593. The next prime is 56615715647. The reversal of 56615715599 is 99551751665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56615715599 - 2³² = 52320748303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56615715593) 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, 28307857799 + 28307857800.

It is an arithmetic number, because the mean of its divisors is an integer number (28307857800).

Almost surely, 2^56615715599 is an apocalyptic number.

56615715599 is a deficient number, since it is larger than the sum of its proper divisors (1).

56615715599 is an equidigital number, since it uses as much as digits as its factorization.

56615715599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12757500, while the sum is 59.

The spelling of 56615715599 in words is "fifty-six billion, six hundred fifteen million, seven hundred fifteen thousand, five hundred ninety-nine".