566545697 has 2 divisors, whose sum is σ = 566545698. Its totient is φ = 566545696.

The previous prime is 566545687. The next prime is 566545699. The reversal of 566545697 is 796545665.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498003856 + 68541841 = 22316^2 + 8279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566545697 is a prime.

Together with 566545699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (566545699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283272848 + 283272849.

It is an arithmetic number, because the mean of its divisors is an integer number (283272849).

Almost surely, 2^566545697 is an apocalyptic number.

It is an amenable number.

566545697 is a deficient number, since it is larger than the sum of its proper divisors (1).

566545697 is an equidigital number, since it uses as much as digits as its factorization.

566545697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804000, while the sum is 53.

The square root of 566545697 is about 23802.2204216329. The cubic root of 566545697 is about 827.4561378466.

The spelling of 566545697 in words is "five hundred sixty-six million, five hundred forty-five thousand, six hundred ninety-seven".