516507373 has 2 divisors, whose sum is σ = 516507374. Its totient is φ = 516507372.

The previous prime is 516507361. The next prime is 516507377. The reversal of 516507373 is 373705615.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516289284 + 218089 = 22722^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 516507373 - 2²⁵ = 482952941 is a prime.

It is a super-2 number, since 2×516507373² = 533559732726722258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516507377) 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, 258253686 + 258253687.

It is an arithmetic number, because the mean of its divisors is an integer number (258253687).

Almost surely, 2^516507373 is an apocalyptic number.

It is an amenable number.

516507373 is a deficient number, since it is larger than the sum of its proper divisors (1).

516507373 is an equidigital number, since it uses as much as digits as its factorization.

516507373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 37.

The square root of 516507373 is about 22726.7985646901. The cubic root of 516507373 is about 802.3407346263.

The spelling of 516507373 in words is "five hundred sixteen million, five hundred seven thousand, three hundred seventy-three".