516252874 has 4 divisors (see below), whose sum is σ = 774379314. Its totient is φ = 258126436.

The previous prime is 516252839. The next prime is 516252887. The reversal of 516252874 is 478252615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 492174225 + 24078649 = 22185^2 + 4907^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129063217 + ... + 129063220.

Almost surely, 2^516252874 is an apocalyptic number.

516252874 is a deficient number, since it is larger than the sum of its proper divisors (258126440).

516252874 is a wasteful number, since it uses less digits than its factorization.

516252874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258126439.

The product of its digits is 134400, while the sum is 40.

The square root of 516252874 is about 22721.1987799940. The cubic root of 516252874 is about 802.2089336929.

The spelling of 516252874 in words is "five hundred sixteen million, two hundred fifty-two thousand, eight hundred seventy-four".