566864513 has 2 divisors, whose sum is σ = 566864514. Its totient is φ = 566864512.

The previous prime is 566864461. The next prime is 566864549. The reversal of 566864513 is 315468665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487173184 + 79691329 = 22072^2 + 8927^2 .

It is a cyclic number.

It is not a de Polignac number, because 566864513 - 2⁸ = 566864257 is a prime.

It is not a weakly prime, because it can be changed into another prime (566864713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283432256 + 283432257.

It is an arithmetic number, because the mean of its divisors is an integer number (283432257).

Almost surely, 2^566864513 is an apocalyptic number.

It is an amenable number.

566864513 is a deficient number, since it is larger than the sum of its proper divisors (1).

566864513 is an equidigital number, since it uses as much as digits as its factorization.

566864513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 566864513 is about 23808.9166700209. The cubic root of 566864513 is about 827.6113220259.

The spelling of 566864513 in words is "five hundred sixty-six million, eight hundred sixty-four thousand, five hundred thirteen".