565255 has 4 divisors (see below), whose sum is σ = 678312. Its totient is φ = 452200.

The previous prime is 565247. The next prime is 565259. The reversal of 565255 is 552565.

565255 = T₄₇₃ + T₄₇₄ + ... + T₄₇₇.

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

It is not a de Polignac number, because 565255 - 2³ = 565247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565259) 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, 56521 + ... + 56530.

It is an arithmetic number, because the mean of its divisors is an integer number (169578).

2⁵⁶⁵²⁵⁵ is an apocalyptic number.

565255 is a deficient number, since it is larger than the sum of its proper divisors (113057).

565255 is a wasteful number, since it uses less digits than its factorization.

565255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113056.

The product of its digits is 7500, while the sum is 28.

The square root of 565255 is about 751.8344232609. The cubic root of 565255 is about 82.6827293478.

Subtracting from 565255 its product of digits (7500), we obtain a palindrome (557755).

It can be divided in two parts, 565 and 255, that added together give a triangular number (820 = T₄₀).

The spelling of 565255 in words is "five hundred sixty-five thousand, two hundred fifty-five".