255956 has 12 divisors (see below), whose sum is σ = 455700. Its totient is φ = 125760.

The previous prime is 255947. The next prime is 255961. The reversal of 255956 is 659552.

It can be written as a sum of positive squares in 2 ways, for example, as 111556 + 144400 = 334^2 + 380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281 + ... + 768.

It is an arithmetic number, because the mean of its divisors is an integer number (37975).

2²⁵⁵⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

255956 is a deficient number, since it is larger than the sum of its proper divisors (199744).

255956 is a wasteful number, since it uses less digits than its factorization.

255956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1112 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 255956 is about 505.9209424406. The cubic root of 255956 is about 63.4924040762.

The spelling of 255956 in words is "two hundred fifty-five thousand, nine hundred fifty-six".