564325353466261 has 2 divisors, whose sum is σ = 564325353466262. Its totient is φ = 564325353466260.

The previous prime is 564325353466187. The next prime is 564325353466279. The reversal of 564325353466261 is 162664353523465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488939217280900 + 75386136185361 = 22111970^2 + 8682519^2 .

It is a cyclic number.

It is not a de Polignac number, because 564325353466261 - 2²³ = 564325345077653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 564325353466261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564325353166261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282162676733130 + 282162676733131.

It is an arithmetic number, because the mean of its divisors is an integer number (282162676733131).

Almost surely, 2^{564325353466261} is an apocalyptic number.

It is an amenable number.

564325353466261 is a deficient number, since it is larger than the sum of its proper divisors (1).

564325353466261 is an equidigital number, since it uses as much as digits as its factorization.

564325353466261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936000, while the sum is 61.

The spelling of 564325353466261 in words is "five hundred sixty-four trillion, three hundred twenty-five billion, three hundred fifty-three million, four hundred sixty-six thousand, two hundred sixty-one".