513005216 has 12 divisors (see below), whose sum is σ = 1009979082. Its totient is φ = 256502592.

The previous prime is 513005191. The next prime is 513005219. The reversal of 513005216 is 612500315.

It can be written as a sum of positive squares in only one way, i.e., 501580816 + 11424400 = 22396^2 + 3380^2 .

It is a junction number, because it is equal to n+sod(n) for n = 513005191 and 513005200.

It is not an unprimeable number, because it can be changed into a prime (513005219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8015675 + ... + 8015738.

Almost surely, 2^513005216 is an apocalyptic number.

It is an amenable number.

513005216 is a deficient number, since it is larger than the sum of its proper divisors (496973866).

513005216 is a wasteful number, since it uses less digits than its factorization.

513005216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16031423 (or 16031415 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 513005216 is about 22649.6184515325. The cubic root of 513005216 is about 800.5232077425.

The spelling of 513005216 in words is "five hundred thirteen million, five thousand, two hundred sixteen".