565289 has 2 divisors, whose sum is σ = 565290. Its totient is φ = 565288.

The previous prime is 565283. The next prime is 565303. The reversal of 565289 is 982565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 17689 = 740^2 + 133^2 .

It is a cyclic number.

It is not a de Polignac number, because 565289 - 2⁴ = 565273 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 5² + 6 + 2¹⁰ + 5² + 8⁵ + 9⁶ .

It is a Curzon number.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (565283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282644 + 282645.

It is an arithmetic number, because the mean of its divisors is an integer number (282645).

2⁵⁶⁵²⁸⁹ is an apocalyptic number.

It is an amenable number.

565289 is a deficient number, since it is larger than the sum of its proper divisors (1).

565289 is an equidigital number, since it uses as much as digits as its factorization.

565289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 565289 is about 751.8570342824. The cubic root of 565289 is about 82.6843870990.

The spelling of 565289 in words is "five hundred sixty-five thousand, two hundred eighty-nine".