56997033018 has 16 divisors (see below), whose sum is σ = 113996405280. Its totient is φ = 18998621136.

The previous prime is 56997032971. The next prime is 56997033019. The reversal of 56997033018 is 81033079965.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56997033019) 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 in 7 ways as a sum of consecutive naturals, for example, 531453 + ... + 629631.

It is an arithmetic number, because the mean of its divisors is an integer number (7124775330).

Almost surely, 2^56997033018 is an apocalyptic number.

56997033018 is an abundant number, since it is smaller than the sum of its proper divisors (56999372262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56997033018 is a wasteful number, since it uses less digits than its factorization.

56997033018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194941.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 56997033018 in words is "fifty-six billion, nine hundred ninety-seven million, thirty-three thousand, eighteen".