565045 has 8 divisors (see below), whose sum is σ = 730296. Its totient is φ = 417216.

The previous prime is 565039. The next prime is 565049. The reversal of 565045 is 540565.

It can be written as a sum of positive squares in 4 ways, for example, as 12996 + 552049 = 114^2 + 743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 565045 - 2⁵ = 565013 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 (565049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4282 + ... + 4411.

It is an arithmetic number, because the mean of its divisors is an integer number (91287).

2⁵⁶⁵⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

565045 is a deficient number, since it is larger than the sum of its proper divisors (165251).

565045 is a wasteful number, since it uses less digits than its factorization.

565045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 565045 is about 751.6947518774. The cubic root of 565045 is about 82.6724888228.

The spelling of 565045 in words is "five hundred sixty-five thousand, forty-five".