565567 has 2 divisors, whose sum is σ = 565568. Its totient is φ = 565566.

The previous prime is 565559. The next prime is 565571. The reversal of 565567 is 765565.

565567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 565567 - 2³ = 565559 is a 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 (565507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282783 + 282784.

It is an arithmetic number, because the mean of its divisors is an integer number (282784).

2⁵⁶⁵⁵⁶⁷ is an apocalyptic number.

565567 is a deficient number, since it is larger than the sum of its proper divisors (1).

565567 is an equidigital number, since it uses as much as digits as its factorization.

565567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31500, while the sum is 34.

The square root of 565567 is about 752.0418871313. The cubic root of 565567 is about 82.6979391597.

It can be divided in two parts, 5655 and 67, that multiplied together give a triangular number (378885 = T₈₇₀).

The spelling of 565567 in words is "five hundred sixty-five thousand, five hundred sixty-seven".