55422880 has 24 divisors (see below), whose sum is σ = 130936932. Its totient is φ = 22169088.

The previous prime is 55422817. The next prime is 55422883. The reversal of 55422880 is 8822455.

It can be written as a sum of positive squares in 2 ways, for example, as 51782416 + 3640464 = 7196^2 + 1908^2 .

It is not an unprimeable number, because it can be changed into a prime (55422883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173037 + ... + 173356.

Almost surely, 2^55422880 is an apocalyptic number.

It is an amenable number.

55422880 is an abundant number, since it is smaller than the sum of its proper divisors (75514052).

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

55422880 is a wasteful number, since it uses less digits than its factorization.

55422880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346408 (or 346400 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 55422880 is about 7444.6544580659. The cubic root of 55422880 is about 381.2674208648.

The spelling of 55422880 in words is "fifty-five million, four hundred twenty-two thousand, eight hundred eighty".