516320431 has 6 divisors (see below), whose sum is σ = 567525896. Its totient is φ = 469382100.

The previous prime is 516320429. The next prime is 516320443. The reversal of 516320431 is 134023615.

It is not a de Polignac number, because 516320431 - 2¹ = 516320429 is a prime.

It is a super-2 number, since 2×516320431² = 533173574936051522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516320396 and 516320405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516320131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2133435 + ... + 2133676.

Almost surely, 2^516320431 is an apocalyptic number.

516320431 is a deficient number, since it is larger than the sum of its proper divisors (51205465).

516320431 is a wasteful number, since it uses less digits than its factorization.

516320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267133 (or 4267122 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 516320431 is about 22722.6853826743. The cubic root of 516320431 is about 802.2439245975.

The spelling of 516320431 in words is "five hundred sixteen million, three hundred twenty thousand, four hundred thirty-one".