565825 has 12 divisors (see below), whose sum is σ = 756028. Its totient is φ = 417600.

The previous prime is 565813. The next prime is 565849. The reversal of 565825 is 528565.

It can be written as a sum of positive squares in 6 ways, for example, as 242064 + 323761 = 492^2 + 569^2 .

It is not a de Polignac number, because 565825 - 2⁵ = 565793 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546 + ... + 1195.

2⁵⁶⁵⁸²⁵ is an apocalyptic number.

It is an amenable number.

565825 is a deficient number, since it is larger than the sum of its proper divisors (190203).

565825 is a wasteful number, since it uses less digits than its factorization.

565825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1759 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 565825 is about 752.2134005719. The cubic root of 565825 is about 82.7105122794.

The spelling of 565825 in words is "five hundred sixty-five thousand, eight hundred twenty-five".