560625809 has 2 divisors, whose sum is σ = 560625810. Its totient is φ = 560625808.

The previous prime is 560625797. The next prime is 560625817. The reversal of 560625809 is 908526065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408646225 + 151979584 = 20215^2 + 12328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-560625809 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (560625889) 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, 280312904 + 280312905.

It is an arithmetic number, because the mean of its divisors is an integer number (280312905).

Almost surely, 2^560625809 is an apocalyptic number.

It is an amenable number.

560625809 is a deficient number, since it is larger than the sum of its proper divisors (1).

560625809 is an equidigital number, since it uses as much as digits as its factorization.

560625809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 560625809 is about 23677.5380688111. The cubic root of 560625809 is about 824.5639858291.

The spelling of 560625809 in words is "five hundred sixty million, six hundred twenty-five thousand, eight hundred nine".