255579 has 4 divisors (see below), whose sum is σ = 340776. Its totient is φ = 170384.

The previous prime is 255571. The next prime is 255587. The reversal of 255579 is 975552.

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

It is an interprime number because it is at equal distance from previous prime (255571) and next prime (255587).

It is a cyclic number.

It is not a de Polignac number, because 255579 - 2³ = 255571 is a prime.

It is a D-number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (255571) 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, 42594 + ... + 42599.

It is an arithmetic number, because the mean of its divisors is an integer number (85194).

2²⁵⁵⁵⁷⁹ is an apocalyptic number.

255579 is a deficient number, since it is larger than the sum of its proper divisors (85197).

255579 is an equidigital number, since it uses as much as digits as its factorization.

255579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85196.

The product of its digits is 15750, while the sum is 33.

The square root of 255579 is about 505.5482172850. The cubic root of 255579 is about 63.4612159057.

The spelling of 255579 in words is "two hundred fifty-five thousand, five hundred seventy-nine".