513523630524 has 48 divisors (see below), whose sum is σ = 1263190634496. Its totient is φ = 162128251200.

The previous prime is 513523630463. The next prime is 513523630541. The reversal of 513523630524 is 425036325315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14668047 + ... + 14703014.

It is an arithmetic number, because the mean of its divisors is an integer number (26316471552).

Almost surely, 2^513523630524 is an apocalyptic number.

It is an amenable number.

513523630524 is an abundant number, since it is smaller than the sum of its proper divisors (749667003972).

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

513523630524 is a wasteful number, since it uses less digits than its factorization.

513523630524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29371146 (or 29371144 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

Adding to 513523630524 its reverse (425036325315), we get a palindrome (938559955839).

The spelling of 513523630524 in words is "five hundred thirteen billion, five hundred twenty-three million, six hundred thirty thousand, five hundred twenty-four".