513730216 has 24 divisors (see below), whose sum is σ = 972847530. Its totient is φ = 254329248.

The previous prime is 513730213. The next prime is 513730223. The reversal of 513730216 is 612037315.

It can be written as a sum of positive squares in only one way, i.e., 504182116 + 9548100 = 22454^2 + 3090^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (513730213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81846 + ... + 87898.

Almost surely, 2^513730216 is an apocalyptic number.

It is an amenable number.

513730216 is a deficient number, since it is larger than the sum of its proper divisors (459117314).

513730216 is a wasteful number, since it uses less digits than its factorization.

513730216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265 (or 6158 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 513730216 is about 22665.6174855220. The cubic root of 513730216 is about 800.9001409696.

It can be divided in two parts, 5137 and 30216, that added together give a palindrome (35353).

The spelling of 513730216 in words is "five hundred thirteen million, seven hundred thirty thousand, two hundred sixteen".