255155 has 4 divisors (see below), whose sum is σ = 306192. Its totient is φ = 204120.

The previous prime is 255149. The next prime is 255173. The reversal of 255155 is 551552.

255155 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 255155 - 2⁸ = 254899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25511 + ... + 25520.

It is an arithmetic number, because the mean of its divisors is an integer number (76548).

2²⁵⁵¹⁵⁵ is an apocalyptic number.

255155 is a deficient number, since it is larger than the sum of its proper divisors (51037).

255155 is an equidigital number, since it uses as much as digits as its factorization.

255155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51036.

The product of its digits is 1250, while the sum is 23.

The square root of 255155 is about 505.1286964725. The cubic root of 255155 is about 63.4261028892.

The spelling of 255155 in words is "two hundred fifty-five thousand, one hundred fifty-five".