55390576 has 20 divisors (see below), whose sum is σ = 107623072. Its totient is φ = 27616896.

The previous prime is 55390561. The next prime is 55390603. The reversal of 55390576 is 67509355.

It is a super-2 number, since 2×55390576² = 6136231819223552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156 + ... + 10588.

Almost surely, 2^55390576 is an apocalyptic number.

It is an amenable number.

55390576 is a deficient number, since it is larger than the sum of its proper divisors (52232496).

55390576 is a wasteful number, since it uses less digits than its factorization.

55390576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9808 (or 9802 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 55390576 is about 7442.4845313914. The cubic root of 55390576 is about 381.1933307870.

The spelling of 55390576 in words is "fifty-five million, three hundred ninety thousand, five hundred seventy-six".