55660584 has 64 divisors (see below), whose sum is σ = 168393600. Its totient is φ = 14966784.

The previous prime is 55660573. The next prime is 55660607. The reversal of 55660584 is 48506655.

It is a super-2 number, since 2×55660584² = 6196201222442112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6889 + ... + 12600.

It is an arithmetic number, because the mean of its divisors is an integer number (2631150).

Almost surely, 2^55660584 is an apocalyptic number.

It is an amenable number.

55660584 is an abundant number, since it is smaller than the sum of its proper divisors (112733016).

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

55660584 is a wasteful number, since it uses less digits than its factorization.

55660584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19522 (or 19518 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 55660584 is about 7460.6021204726. The cubic root of 55660584 is about 381.8117179281.

The spelling of 55660584 in words is "fifty-five million, six hundred sixty thousand, five hundred eighty-four".