55426992 has 40 divisors (see below), whose sum is σ = 144008640. Its totient is φ = 18369600.

The previous prime is 55426967. The next prime is 55427011. The reversal of 55426992 is 29962455.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5367 + ... + 11817.

It is an arithmetic number, because the mean of its divisors is an integer number (3600216).

Almost surely, 2^55426992 is an apocalyptic number.

It is an amenable number.

55426992 is an abundant number, since it is smaller than the sum of its proper divisors (88581648).

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

55426992 is a wasteful number, since it uses less digits than its factorization.

55426992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641 (or 6635 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 55426992 is about 7444.9306242570. The cubic root of 55426992 is about 381.2768497797.

The spelling of 55426992 in words is "fifty-five million, four hundred twenty-six thousand, nine hundred ninety-two".