513786516 has 48 divisors (see below), whose sum is σ = 1227260160. Its totient is φ = 167219200.

The previous prime is 513786491. The next prime is 513786521. The reversal of 513786516 is 615687315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320116 + ... + 321716.

It is an arithmetic number, because the mean of its divisors is an integer number (25567920).

Almost surely, 2^513786516 is an apocalyptic number.

It is an amenable number.

513786516 is an abundant number, since it is smaller than the sum of its proper divisors (713473644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513786516 is a wasteful number, since it uses less digits than its factorization.

513786516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224 (or 2222 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The square root of 513786516 is about 22666.8594207491. The cubic root of 513786516 is about 800.9293969419.

The spelling of 513786516 in words is "five hundred thirteen million, seven hundred eighty-six thousand, five hundred sixteen".