255279 has 4 divisors (see below), whose sum is σ = 340376. Its totient is φ = 170184.

The previous prime is 255259. The next prime is 255313. The reversal of 255279 is 972552.

It is a happy number.

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

It is not a de Polignac number, because 255279 - 2⁵ = 255247 is a prime.

It is a D-number.

It is a Duffinian number.

255279 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255279.

It is not an unprimeable number, because it can be changed into a prime (255209) 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, 42544 + ... + 42549.

It is an arithmetic number, because the mean of its divisors is an integer number (85094).

2²⁵⁵²⁷⁹ is an apocalyptic number.

255279 is a deficient number, since it is larger than the sum of its proper divisors (85097).

255279 is an equidigital number, since it uses as much as digits as its factorization.

255279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85096.

The product of its digits is 6300, while the sum is 30.

The square root of 255279 is about 505.2514225611. The cubic root of 255279 is about 63.4363758122.

The spelling of 255279 in words is "two hundred fifty-five thousand, two hundred seventy-nine".