565168979 has 2 divisors, whose sum is σ = 565168980. Its totient is φ = 565168978.

The previous prime is 565168939. The next prime is 565168997. The reversal of 565168979 is 979861565.

Together with next prime (565168997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 565168979 - 2¹² = 565164883 is a prime.

It is not a weakly prime, because it can be changed into another prime (565168939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282584489 + 282584490.

It is an arithmetic number, because the mean of its divisors is an integer number (282584490).

Almost surely, 2^565168979 is an apocalyptic number.

565168979 is a deficient number, since it is larger than the sum of its proper divisors (1).

565168979 is an equidigital number, since it uses as much as digits as its factorization.

565168979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 56.

The square root of 565168979 is about 23773.2828822609. The cubic root of 565168979 is about 826.7853489166.

The spelling of 565168979 in words is "five hundred sixty-five million, one hundred sixty-eight thousand, nine hundred seventy-nine".