56642890192 has 20 divisors (see below), whose sum is σ = 125423542816. Its totient is φ = 24275524320.

The previous prime is 56642890169. The next prime is 56642890201. The reversal of 56642890192 is 29109824665.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 252869934 + ... + 252870157.

Almost surely, 2^56642890192 is an apocalyptic number.

It is an amenable number.

56642890192 is an abundant number, since it is smaller than the sum of its proper divisors (68780652624).

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

56642890192 is a wasteful number, since it uses less digits than its factorization.

56642890192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505740106 (or 505740100 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 56642890192 in words is "fifty-six billion, six hundred forty-two million, eight hundred ninety thousand, one hundred ninety-two".