255960 has 80 divisors (see below), whose sum is σ = 871200. Its totient is φ = 67392.

The previous prime is 255947. The next prime is 255961. The reversal of 255960 is 69552.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255961) by changing a digit.

255960 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 19 ways as a sum of consecutive naturals, for example, 3201 + ... + 3279.

It is an arithmetic number, because the mean of its divisors is an integer number (10890).

2²⁵⁵⁹⁶⁰ is an apocalyptic number.

255960 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 255960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435600).

255960 is an abundant number, since it is smaller than the sum of its proper divisors (615240).

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

255960 is a wasteful number, since it uses less digits than its factorization.

255960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 255960 is about 505.9248956120. The cubic root of 255960 is about 63.4927348209.

The spelling of 255960 in words is "two hundred fifty-five thousand, nine hundred sixty".