565559 has 2 divisors, whose sum is σ = 565560. Its totient is φ = 565558.

The previous prime is 565553. The next prime is 565567. The reversal of 565559 is 955565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 565559 - 2⁸ = 565303 is a prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282779 + 282780.

It is an arithmetic number, because the mean of its divisors is an integer number (282780).

2⁵⁶⁵⁵⁵⁹ is an apocalyptic number.

565559 is a deficient number, since it is larger than the sum of its proper divisors (1).

565559 is an equidigital number, since it uses as much as digits as its factorization.

565559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33750, while the sum is 35.

The square root of 565559 is about 752.0365682598. The cubic root of 565559 is about 82.6975492344.

The spelling of 565559 in words is "five hundred sixty-five thousand, five hundred fifty-nine".