55588580 has 24 divisors (see below), whose sum is σ = 120503040. Its totient is φ = 21517920.

The previous prime is 55588571. The next prime is 55588597. The reversal of 55588580 is 8588555.

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, 44210 + ... + 45449.

It is an arithmetic number, because the mean of its divisors is an integer number (5020960).

Almost surely, 2^55588580 is an apocalyptic number.

It is an amenable number.

55588580 is an abundant number, since it is smaller than the sum of its proper divisors (64914460).

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

55588580 is a wasteful number, since it uses less digits than its factorization.

55588580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89699 (or 89697 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 44.

The square root of 55588580 is about 7455.7749429553. The cubic root of 55588580 is about 381.6470063119.

The spelling of 55588580 in words is "fifty-five million, five hundred eighty-eight thousand, five hundred eighty".