255085 has 8 divisors (see below), whose sum is σ = 324216. Its totient is φ = 192000.

The previous prime is 255083. The next prime is 255097. The reversal of 255085 is 580552.

It can be written as a sum of positive squares in 4 ways, for example, as 56169 + 198916 = 237^2 + 446^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255085 - 2¹ = 255083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1416 + ... + 1585.

It is an arithmetic number, because the mean of its divisors is an integer number (40527).

2²⁵⁵⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

255085 is a deficient number, since it is larger than the sum of its proper divisors (69131).

255085 is a wasteful number, since it uses less digits than its factorization.

255085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 255085 is about 505.0594024469. The cubic root of 255085 is about 63.4203021886.

The spelling of 255085 in words is "two hundred fifty-five thousand, eighty-five".