255117018 has 32 divisors (see below), whose sum is σ = 550368000. Its totient is φ = 78371136.

The previous prime is 255117013. The next prime is 255117029. The reversal of 255117018 is 810711552.

255117018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255117013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53808 + ... + 58356.

It is an arithmetic number, because the mean of its divisors is an integer number (17199000).

Almost surely, 2^255117018 is an apocalyptic number.

255117018 is an abundant number, since it is smaller than the sum of its proper divisors (295250982).

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

255117018 is a wasteful number, since it uses less digits than its factorization.

255117018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286.

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 255117018 is about 15972.3829781282. The cubic root of 255117018 is about 634.2295556069.

The spelling of 255117018 in words is "two hundred fifty-five million, one hundred seventeen thousand, eighteen".