565285 has 16 divisors (see below), whose sum is σ = 801792. Its totient is φ = 374400.

The previous prime is 565283. The next prime is 565289. The reversal of 565285 is 582565.

It is not a de Polignac number, because 565285 - 2¹ = 565283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825 + ... + 1345.

It is an arithmetic number, because the mean of its divisors is an integer number (50112).

2⁵⁶⁵²⁸⁵ is an apocalyptic number.

It is an amenable number.

565285 is a deficient number, since it is larger than the sum of its proper divisors (236507).

565285 is a wasteful number, since it uses less digits than its factorization.

565285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564.

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

The square root of 565285 is about 751.8543741976. The cubic root of 565285 is about 82.6841920729.

The spelling of 565285 in words is "five hundred sixty-five thousand, two hundred eighty-five".