515530012 has 12 divisors (see below), whose sum is σ = 902391840. Its totient is φ = 257703776.

The previous prime is 515530007. The next prime is 515530039. The reversal of 515530012 is 210035515.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7368 + ... + 32944.

It is an arithmetic number, because the mean of its divisors is an integer number (75199320).

Almost surely, 2^515530012 is an apocalyptic number.

It is an amenable number.

515530012 is a deficient number, since it is larger than the sum of its proper divisors (386861828).

515530012 is a wasteful number, since it uses less digits than its factorization.

515530012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30620 (or 30618 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 515530012 is about 22705.2859924732. The cubic root of 515530012 is about 801.8343387039.

Adding to 515530012 its reverse (210035515), we get a palindrome (725565527).

The spelling of 515530012 in words is "five hundred fifteen million, five hundred thirty thousand, twelve".