55458888 has 32 divisors (see below), whose sum is σ = 144676800. Its totient is φ = 17682368.

The previous prime is 55458859. The next prime is 55458889. The reversal of 55458888 is 88885455.

It is a self number, because there is not a number n which added to its sum of digits gives 55458888.

It is not an unprimeable number, because it can be changed into a prime (55458889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49683 + ... + 50786.

It is an arithmetic number, because the mean of its divisors is an integer number (4521150).

Almost surely, 2^55458888 is an apocalyptic number.

It is an amenable number.

55458888 is an abundant number, since it is smaller than the sum of its proper divisors (89217912).

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

55458888 is a wasteful number, since it uses less digits than its factorization.

55458888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100501 (or 100497 counting only the distinct ones).

The product of its digits is 2048000, while the sum is 51.

The square root of 55458888 is about 7447.0724449276. The cubic root of 55458888 is about 381.3499722420.

The spelling of 55458888 in words is "fifty-five million, four hundred fifty-eight thousand, eight hundred eighty-eight".