56997265639 has 2 divisors, whose sum is σ = 56997265640. Its totient is φ = 56997265638.

The previous prime is 56997265607. The next prime is 56997265679. The reversal of 56997265639 is 93656279965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56997265639 - 2⁵ = 56997265607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56997265679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28498632819 + 28498632820.

It is an arithmetic number, because the mean of its divisors is an integer number (28498632820).

Almost surely, 2^56997265639 is an apocalyptic number.

56997265639 is a deficient number, since it is larger than the sum of its proper divisors (1).

56997265639 is an equidigital number, since it uses as much as digits as its factorization.

56997265639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165337200, while the sum is 67.

The spelling of 56997265639 in words is "fifty-six billion, nine hundred ninety-seven million, two hundred sixty-five thousand, six hundred thirty-nine".