516457631 has 2 divisors, whose sum is σ = 516457632. Its totient is φ = 516457630.

The previous prime is 516457619. The next prime is 516457633. The reversal of 516457631 is 136754615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516457631 - 2¹⁰ = 516456607 is a prime.

It is a super-2 number, since 2×516457631² = 533456969236264322, which contains 22 as substring.

Together with 516457633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516457633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258228815 + 258228816.

It is an arithmetic number, because the mean of its divisors is an integer number (258228816).

Almost surely, 2^516457631 is an apocalyptic number.

516457631 is a deficient number, since it is larger than the sum of its proper divisors (1).

516457631 is an equidigital number, since it uses as much as digits as its factorization.

516457631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 516457631 is about 22725.7041915097. The cubic root of 516457631 is about 802.3149774502.

The spelling of 516457631 in words is "five hundred sixteen million, four hundred fifty-seven thousand, six hundred thirty-one".