516402317 has 2 divisors, whose sum is σ = 516402318. Its totient is φ = 516402316.

The previous prime is 516402283. The next prime is 516402323. The reversal of 516402317 is 713204615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480749476 + 35652841 = 21926^2 + 5971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516402317 is a prime.

It is a Chen prime.

It is equal to p_27173135 and since 516402317 and 27173135 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516402317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516402517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258201158 + 258201159.

It is an arithmetic number, because the mean of its divisors is an integer number (258201159).

Almost surely, 2^516402317 is an apocalyptic number.

It is an amenable number.

516402317 is a deficient number, since it is larger than the sum of its proper divisors (1).

516402317 is an equidigital number, since it uses as much as digits as its factorization.

516402317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 516402317 is about 22724.4871669307. The cubic root of 516402317 is about 802.2863330642.

The spelling of 516402317 in words is "five hundred sixteen million, four hundred two thousand, three hundred seventeen".