565489 has 2 divisors, whose sum is σ = 565490. Its totient is φ = 565488.

The previous prime is 565483. The next prime is 565507. The reversal of 565489 is 984565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518400 + 47089 = 720^2 + 217^2 .

It is a cyclic number.

It is not a de Polignac number, because 565489 - 2⁷ = 565361 is a prime.

It is a d-powerful number, because it can be written as 5³ + 6 + 4⁵ + 5³ + 8⁵ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (565483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282744 + 282745.

It is an arithmetic number, because the mean of its divisors is an integer number (282745).

2⁵⁶⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

565489 is a deficient number, since it is larger than the sum of its proper divisors (1).

565489 is an equidigital number, since it uses as much as digits as its factorization.

565489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 565489 is about 751.9900265296. The cubic root of 565489 is about 82.6941372312.

The spelling of 565489 in words is "five hundred sixty-five thousand, four hundred eighty-nine".