255099 has 16 divisors (see below), whose sum is σ = 379904. Its totient is φ = 151200.

The previous prime is 255097. The next prime is 255107. The reversal of 255099 is 990552.

It is not a de Polignac number, because 255099 - 2¹ = 255097 is a prime.

It is a Duffinian number.

255099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (255097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1104 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (23744).

2²⁵⁵⁰⁹⁹ is an apocalyptic number.

255099 is a deficient number, since it is larger than the sum of its proper divisors (124805).

255099 is a wasteful number, since it uses less digits than its factorization.

255099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 255099 is about 505.0732620126. The cubic root of 255099 is about 63.4214624136.

The spelling of 255099 in words is "two hundred fifty-five thousand, ninety-nine".