516233317 has 2 divisors, whose sum is σ = 516233318. Its totient is φ = 516233316.

The previous prime is 516233309. The next prime is 516233323. The reversal of 516233317 is 713332615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381069441 + 135163876 = 19521^2 + 11626^2 .

It is a cyclic number.

It is not a de Polignac number, because 516233317 - 2³ = 516233309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516233387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258116658 + 258116659.

It is an arithmetic number, because the mean of its divisors is an integer number (258116659).

Almost surely, 2^516233317 is an apocalyptic number.

It is an amenable number.

516233317 is a deficient number, since it is larger than the sum of its proper divisors (1).

516233317 is an equidigital number, since it uses as much as digits as its factorization.

516233317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 31.

The square root of 516233317 is about 22720.7684069003. The cubic root of 516233317 is about 802.1988036455.

The spelling of 516233317 in words is "five hundred sixteen million, two hundred thirty-three thousand, three hundred seventeen".