516261031 has 24 divisors (see below), whose sum is σ = 612420480. Its totient is φ = 431402400.

The previous prime is 516261023. The next prime is 516261041. The reversal of 516261031 is 130162615.

It is not a de Polignac number, because 516261031 - 2³ = 516261023 is a prime.

It is a super-2 number, since 2×516261031² = 533050904258365922, 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 = 516260987 and 516261005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516261001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 614910 + ... + 615748.

It is an arithmetic number, because the mean of its divisors is an integer number (25517520).

Almost surely, 2^516261031 is an apocalyptic number.

516261031 is a deficient number, since it is larger than the sum of its proper divisors (96159449).

516261031 is a wasteful number, since it uses less digits than its factorization.

516261031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 516261031 is about 22721.3782812575. The cubic root of 516261031 is about 802.2131587437.

The spelling of 516261031 in words is "five hundred sixteen million, two hundred sixty-one thousand, thirty-one".