56566005599 has 2 divisors, whose sum is σ = 56566005600. Its totient is φ = 56566005598.

The previous prime is 56566005583. The next prime is 56566005607. The reversal of 56566005599 is 99550066565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56566005599 - 2⁴ = 56566005583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56566005569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28283002799 + 28283002800.

It is an arithmetic number, because the mean of its divisors is an integer number (28283002800).

Almost surely, 2^56566005599 is an apocalyptic number.

56566005599 is a deficient number, since it is larger than the sum of its proper divisors (1).

56566005599 is an equidigital number, since it uses as much as digits as its factorization.

56566005599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10935000, while the sum is 56.

The spelling of 56566005599 in words is "fifty-six billion, five hundred sixty-six million, five thousand, five hundred ninety-nine".