255156 has 24 divisors (see below), whose sum is σ = 649824. Its totient is φ = 77280.

The previous prime is 255149. The next prime is 255173. The reversal of 255156 is 651552.

It is a congruent number.

It is an unprimeable number.

255156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835 + ... + 1098.

It is an arithmetic number, because the mean of its divisors is an integer number (27076).

2²⁵⁵¹⁵⁶ is an apocalyptic number.

It is an amenable number.

255156 is an abundant number, since it is smaller than the sum of its proper divisors (394668).

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

255156 is a wasteful number, since it uses less digits than its factorization.

255156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951 (or 1949 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 255156 is about 505.1296863183. The cubic root of 255156 is about 63.4261857486.

The spelling of 255156 in words is "two hundred fifty-five thousand, one hundred fifty-six".