565275779 has 2 divisors, whose sum is σ = 565275780. Its totient is φ = 565275778.

The previous prime is 565275749. The next prime is 565275797. The reversal of 565275779 is 977572565.

Together with next prime (565275797) 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 565275779 - 2⁸ = 565275523 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 565275779.

It is not a weakly prime, because it can be changed into another prime (565275709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282637889 + 282637890.

It is an arithmetic number, because the mean of its divisors is an integer number (282637890).

Almost surely, 2^565275779 is an apocalyptic number.

565275779 is a deficient number, since it is larger than the sum of its proper divisors (1).

565275779 is an equidigital number, since it uses as much as digits as its factorization.

565275779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4630500, while the sum is 53.

The square root of 565275779 is about 23775.5289951664. The cubic root of 565275779 is about 826.8374248544.

The spelling of 565275779 in words is "five hundred sixty-five million, two hundred seventy-five thousand, seven hundred seventy-nine".