516514217 has 2 divisors, whose sum is σ = 516514218. Its totient is φ = 516514216.

The previous prime is 516514199. The next prime is 516514223. The reversal of 516514217 is 712415615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413064976 + 103449241 = 20324^2 + 10171^2 .

It is a cyclic number.

It is not a de Polignac number, because 516514217 - 2²⁰ = 515465641 is a prime.

It is not a weakly prime, because it can be changed into another prime (516514517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258257108 + 258257109.

It is an arithmetic number, because the mean of its divisors is an integer number (258257109).

Almost surely, 2^516514217 is an apocalyptic number.

It is an amenable number.

516514217 is a deficient number, since it is larger than the sum of its proper divisors (1).

516514217 is an equidigital number, since it uses as much as digits as its factorization.

516514217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 516514217 is about 22726.9491353327. The cubic root of 516514217 is about 802.3442784258.

The spelling of 516514217 in words is "five hundred sixteen million, five hundred fourteen thousand, two hundred seventeen".