55575556 has 12 divisors (see below), whose sum is σ = 97340992. Its totient is φ = 27763848.

The previous prime is 55575523. The next prime is 55575563. The reversal of 55575556 is 65557555.

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, 120 + ... + 10543.

Almost surely, 2^55575556 is an apocalyptic number.

It is an amenable number.

55575556 is a deficient number, since it is larger than the sum of its proper divisors (41765436).

55575556 is a wasteful number, since it uses less digits than its factorization.

55575556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11970 (or 11968 counting only the distinct ones).

The product of its digits is 656250, while the sum is 43.

The square root of 55575556 is about 7454.9014748687. The cubic root of 55575556 is about 381.6171982779.

The spelling of 55575556 in words is "fifty-five million, five hundred seventy-five thousand, five hundred fifty-six".