565361 has 2 divisors, whose sum is σ = 565362. Its totient is φ = 565360.

The previous prime is 565343. The next prime is 565379. The reversal of 565361 is 163565.

It is a balanced prime because it is at equal distance from previous prime (565343) and next prime (565379).

It can be written as a sum of positive squares in only one way, i.e., 516961 + 48400 = 719^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 565361 - 2¹⁸ = 303217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 565361.

It is not a weakly prime, because it can be changed into another prime (565381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282680 + 282681.

It is an arithmetic number, because the mean of its divisors is an integer number (282681).

2⁵⁶⁵³⁶¹ is an apocalyptic number.

It is an amenable number.

565361 is a deficient number, since it is larger than the sum of its proper divisors (1).

565361 is an equidigital number, since it uses as much as digits as its factorization.

565361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 565361 is about 751.9049142013. The cubic root of 565361 is about 82.6878974115.

The spelling of 565361 in words is "five hundred sixty-five thousand, three hundred sixty-one".