255928 has 8 divisors (see below), whose sum is σ = 479880. Its totient is φ = 127960.

The previous prime is 255923. The next prime is 255947. The reversal of 255928 is 829552.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 255928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15988 + ... + 16003.

It is an arithmetic number, because the mean of its divisors is an integer number (59985).

2²⁵⁵⁹²⁸ is an apocalyptic number.

It is an amenable number.

255928 is a deficient number, since it is larger than the sum of its proper divisors (223952).

255928 is a wasteful number, since it uses less digits than its factorization.

255928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31997 (or 31993 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 255928 is about 505.8932693761. The cubic root of 255928 is about 63.4900887666.

It can be divided in two parts, 25592 and 8, that added together give a square (25600 = 160²).

The spelling of 255928 in words is "two hundred fifty-five thousand, nine hundred twenty-eight".