255964 has 12 divisors (see below), whose sum is σ = 453600. Its totient is φ = 126368.

The previous prime is 255961. The next prime is 255971. The reversal of 255964 is 469552.

It is an Ulam number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4 + ... + 715.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2²⁵⁵⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

255964 is a deficient number, since it is larger than the sum of its proper divisors (197636).

255964 is a wasteful number, since it uses less digits than its factorization.

255964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 810 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 255964 is about 505.9288487525. The cubic root of 255964 is about 63.4930655622.

It can be divided in two parts, 25596 and 4, that added together give a square (25600 = 160²).

The spelling of 255964 in words is "two hundred fifty-five thousand, nine hundred sixty-four".