255479 has 4 divisors (see below), whose sum is σ = 291984. Its totient is φ = 218976.

The previous prime is 255473. The next prime is 255487. The reversal of 255479 is 974552.

255479 = T₁₈₄ + T₁₈₅ + ... + T₁₉₇.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255473) 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, 18242 + ... + 18255.

It is an arithmetic number, because the mean of its divisors is an integer number (72996).

2²⁵⁵⁴⁷⁹ is an apocalyptic number.

255479 is a deficient number, since it is larger than the sum of its proper divisors (36505).

255479 is an equidigital number, since it uses as much as digits as its factorization.

255479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36504.

The product of its digits is 12600, while the sum is 32.

The square root of 255479 is about 505.4493050742. The cubic root of 255479 is about 63.4529380354.

The spelling of 255479 in words is "two hundred fifty-five thousand, four hundred seventy-nine".