516323617 has 2 divisors, whose sum is σ = 516323618. Its totient is φ = 516323616.

The previous prime is 516323611. The next prime is 516323659. The reversal of 516323617 is 716323615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408080401 + 108243216 = 20201^2 + 10404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516323617 is a prime.

It is not a weakly prime, because it can be changed into another prime (516323611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258161808 + 258161809.

It is an arithmetic number, because the mean of its divisors is an integer number (258161809).

Almost surely, 2^516323617 is an apocalyptic number.

It is an amenable number.

516323617 is a deficient number, since it is larger than the sum of its proper divisors (1).

516323617 is an equidigital number, since it uses as much as digits as its factorization.

516323617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 34.

The square root of 516323617 is about 22722.7554887166. The cubic root of 516323617 is about 802.2455746993.

The spelling of 516323617 in words is "five hundred sixteen million, three hundred twenty-three thousand, six hundred seventeen".