255089 has 4 divisors (see below), whose sum is σ = 259956. Its totient is φ = 250224.

The previous prime is 255083. The next prime is 255097. The reversal of 255089 is 980552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 187489 + 67600 = 433^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 255089 - 2⁸ = 254833 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255089.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354 + ... + 2459.

It is an arithmetic number, because the mean of its divisors is an integer number (64989).

2²⁵⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

255089 is a deficient number, since it is larger than the sum of its proper divisors (4867).

255089 is an equidigital number, since it uses as much as digits as its factorization.

255089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4866.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 255089 is about 505.0633623616. The cubic root of 255089 is about 63.4206336858.

The spelling of 255089 in words is "two hundred fifty-five thousand, eighty-nine".