255155120 has 120 divisors (see below), whose sum is σ = 668321808. Its totient is φ = 90478080.

The previous prime is 255155111. The next prime is 255155149. The reversal of 255155120 is 21551552.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 255155120.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415934 + ... + 416546.

Almost surely, 2^255155120 is an apocalyptic number.

255155120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255155120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334160904).

255155120 is an abundant number, since it is smaller than the sum of its proper divisors (413166688).

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

255155120 is a wasteful number, since it uses less digits than its factorization.

255155120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 255155120 is about 15973.5756798533. The cubic root of 255155120 is about 634.2611283230.

The spelling of 255155120 in words is "two hundred fifty-five million, one hundred fifty-five thousand, one hundred twenty".