55386258 has 16 divisors (see below), whose sum is σ = 110859840. Its totient is φ = 18447536.

The previous prime is 55386229. The next prime is 55386269. The reversal of 55386258 is 85268355.

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, 7003 + ... + 12641.

It is an arithmetic number, because the mean of its divisors is an integer number (6928740).

Almost surely, 2^55386258 is an apocalyptic number.

55386258 is an abundant number, since it is smaller than the sum of its proper divisors (55473582).

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

55386258 is a wasteful number, since it uses less digits than its factorization.

55386258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281.

The product of its digits is 288000, while the sum is 42.

The square root of 55386258 is about 7442.1944344393. The cubic root of 55386258 is about 381.1834251574.

The spelling of 55386258 in words is "fifty-five million, three hundred eighty-six thousand, two hundred fifty-eight".