255168 has 42 divisors (see below), whose sum is σ = 733044. Its totient is φ = 84864.

The previous prime is 255149. The next prime is 255173. The reversal of 255168 is 861552.

It is a super-2 number, since 2×255168² = 130221416448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355 + ... + 797.

2²⁵⁵¹⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366522).

255168 is an abundant number, since it is smaller than the sum of its proper divisors (477876).

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

255168 is a wasteful number, since it uses less digits than its factorization.

255168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 448 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 255168 is about 505.1415643164. The cubic root of 255168 is about 63.4271800453.

The spelling of 255168 in words is "two hundred fifty-five thousand, one hundred sixty-eight".