55255560 has 32 divisors (see below), whose sum is σ = 165767040. Its totient is φ = 14734784.

The previous prime is 55255517. The next prime is 55255573. The reversal of 55255560 is 6555255.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 230112 + ... + 230351.

It is an arithmetic number, because the mean of its divisors is an integer number (5180220).

Almost surely, 2^55255560 is an apocalyptic number.

It is an amenable number.

55255560 is an abundant number, since it is smaller than the sum of its proper divisors (110511480).

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

55255560 is a wasteful number, since it uses less digits than its factorization.

55255560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460477 (or 460473 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 33.

The square root of 55255560 is about 7433.4083703238. The cubic root of 55255560 is about 380.8833558373.

The spelling of 55255560 in words is "fifty-five million, two hundred fifty-five thousand, five hundred sixty".