56442992 has 20 divisors (see below), whose sum is σ = 115791696. Its totient is φ = 26561280.

The previous prime is 56442979. The next prime is 56443001. The reversal of 56442992 is 29924465.

It is a happy number.

It is a super-2 number, since 2×56442992² = 6371622691824128, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 103484 + ... + 104027.

Almost surely, 2^56442992 is an apocalyptic number.

It is an amenable number.

56442992 is an abundant number, since it is smaller than the sum of its proper divisors (59348704).

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

56442992 is a wasteful number, since it uses less digits than its factorization.

56442992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207536 (or 207530 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 56442992 is about 7512.8551163988. The cubic root of 56442992 is about 383.5924133064.

The spelling of 56442992 in words is "fifty-six million, four hundred forty-two thousand, nine hundred ninety-two".