56757994900 has 18 divisors (see below), whose sum is σ = 123164849150. Its totient is φ = 22703197920.

The previous prime is 56757994889. The next prime is 56757994919. The reversal of 56757994900 is 949975765.

It can be written as a sum of positive squares in 3 ways, for example, as 1468115856 + 55289879044 = 38316^2 + 235138^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283789875 + ... + 283790074.

Almost surely, 2^56757994900 is an apocalyptic number.

56757994900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56757994900 is an abundant number, since it is smaller than the sum of its proper divisors (66406854250).

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

56757994900 is a wasteful number, since it uses less digits than its factorization.

56757994900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567579963 (or 567579956 counting only the distinct ones).

The product of its (nonzero) digits is 21432600, while the sum is 61.

The spelling of 56757994900 in words is "fifty-six billion, seven hundred fifty-seven million, nine hundred ninety-four thousand, nine hundred".