516516274 has 16 divisors (see below), whose sum is σ = 803076120. Its totient is φ = 248859520.

The previous prime is 516516251. The next prime is 516516289. The reversal of 516516274 is 472615615.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 412374249 + 104142025 = 20307^2 + 10205^2 .

It is a super-2 number, since 2×516516274² = 533578122613686152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21672 + ... + 38764.

Almost surely, 2^516516274 is an apocalyptic number.

516516274 is a deficient number, since it is larger than the sum of its proper divisors (286559846).

516516274 is a wasteful number, since it uses less digits than its factorization.

516516274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17645.

The product of its digits is 50400, while the sum is 37.

The square root of 516516274 is about 22726.9943899320. The cubic root of 516516274 is about 802.3453435271.

The spelling of 516516274 in words is "five hundred sixteen million, five hundred sixteen thousand, two hundred seventy-four".