565485317 has 2 divisors, whose sum is σ = 565485318. Its totient is φ = 565485316.

The previous prime is 565485307. The next prime is 565485343. The reversal of 565485317 is 713584565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305340676 + 260144641 = 17474^2 + 16129^2 .

It is a cyclic number.

It is not a de Polignac number, because 565485317 - 2⁶ = 565485253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565485307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282742658 + 282742659.

It is an arithmetic number, because the mean of its divisors is an integer number (282742659).

Almost surely, 2^565485317 is an apocalyptic number.

It is an amenable number.

565485317 is a deficient number, since it is larger than the sum of its proper divisors (1).

565485317 is an equidigital number, since it uses as much as digits as its factorization.

565485317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 44.

The square root of 565485317 is about 23779.9351765307. The cubic root of 565485317 is about 826.9395770332.

The spelling of 565485317 in words is "five hundred sixty-five million, four hundred eighty-five thousand, three hundred seventeen".