565445117 has 2 divisors, whose sum is σ = 565445118. Its totient is φ = 565445116.

The previous prime is 565445057. The next prime is 565445119. The reversal of 565445117 is 711544565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456847876 + 108597241 = 21374^2 + 10421^2 .

It is a cyclic number.

It is not a de Polignac number, because 565445117 - 2⁸ = 565444861 is a prime.

Together with 565445119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565445119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282722558 + 282722559.

It is an arithmetic number, because the mean of its divisors is an integer number (282722559).

Almost surely, 2^565445117 is an apocalyptic number.

It is an amenable number.

565445117 is a deficient number, since it is larger than the sum of its proper divisors (1).

565445117 is an equidigital number, since it uses as much as digits as its factorization.

565445117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 38.

The square root of 565445117 is about 23779.0899110963. The cubic root of 565445117 is about 826.9199810285.

The spelling of 565445117 in words is "five hundred sixty-five million, four hundred forty-five thousand, one hundred seventeen".