255955 has 16 divisors (see below), whose sum is σ = 359424. Its totient is φ = 171360.

The previous prime is 255947. The next prime is 255961. The reversal of 255955 is 559552.

It is not a de Polignac number, because 255955 - 2³ = 255947 is a prime.

It is a Duffinian number.

255955 is a lucky number.

It is a zygodrome in base 3.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2434 + ... + 2536.

It is an arithmetic number, because the mean of its divisors is an integer number (22464).

2²⁵⁵⁹⁵⁵ is an apocalyptic number.

255955 is a deficient number, since it is larger than the sum of its proper divisors (103469).

255955 is a wasteful number, since it uses less digits than its factorization.

255955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186.

The product of its digits is 11250, while the sum is 31.

The square root of 255955 is about 505.9199541429. The cubic root of 255955 is about 63.4923213895.

It can be divided in two parts, 25595 and 5, that added together give a square (25600 = 160²).

The spelling of 255955 in words is "two hundred fifty-five thousand, nine hundred fifty-five".