566735489 has 2 divisors, whose sum is σ = 566735490. Its totient is φ = 566735488.

The previous prime is 566735473. The next prime is 566735501. The reversal of 566735489 is 984537665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297217600 + 269517889 = 17240^2 + 16417^2 .

It is a cyclic number.

It is not a de Polignac number, because 566735489 - 2⁴ = 566735473 is a prime.

It is a super-2 number, since 2×566735489² = 642378228984138242, which contains 22 as substring.

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 566735489.

It is not a weakly prime, because it can be changed into another prime (566731489) 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, 283367744 + 283367745.

It is an arithmetic number, because the mean of its divisors is an integer number (283367745).

Almost surely, 2^566735489 is an apocalyptic number.

It is an amenable number.

566735489 is a deficient number, since it is larger than the sum of its proper divisors (1).

566735489 is an equidigital number, since it uses as much as digits as its factorization.

566735489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 53.

The square root of 566735489 is about 23806.2069427282. The cubic root of 566735489 is about 827.5485264058.

The spelling of 566735489 in words is "five hundred sixty-six million, seven hundred thirty-five thousand, four hundred eighty-nine".