55555508 has 12 divisors (see below), whose sum is σ = 97403712. Its totient is φ = 27725880.

The previous prime is 55555481. The next prime is 55555517. The reversal of 55555508 is 80555555.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 10508 + ... + 14883.

It is an arithmetic number, because the mean of its divisors is an integer number (8116976).

Almost surely, 2^55555508 is an apocalyptic number.

It is an amenable number.

55555508 is a deficient number, since it is larger than the sum of its proper divisors (41848204).

55555508 is a wasteful number, since it uses less digits than its factorization.

55555508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25942 (or 25940 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 38.

The square root of 55555508 is about 7453.5567348750. The cubic root of 55555508 is about 381.5713053094.

The spelling of 55555508 in words is "fifty-five million, five hundred fifty-five thousand, five hundred eight".