56918992 has 40 divisors (see below), whose sum is σ = 125757576. Its totient is φ = 24723456.

The previous prime is 56918989. The next prime is 56919047. The reversal of 56918992 is 29981965.

It can be written as a sum of positive squares in 4 ways, for example, as 7974976 + 48944016 = 2824^2 + 6996^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4513 + ... + 11584.

Almost surely, 2^56918992 is an apocalyptic number.

56918992 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56918992 is an abundant number, since it is smaller than the sum of its proper divisors (68838584).

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

56918992 is a wasteful number, since it uses less digits than its factorization.

56918992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16135 (or 16129 counting only the distinct ones).

The product of its digits is 349920, while the sum is 49.

The square root of 56918992 is about 7544.4676419215. The cubic root of 56918992 is about 384.6677112643.

The spelling of 56918992 in words is "fifty-six million, nine hundred eighteen thousand, nine hundred ninety-two".