513120502 has 4 divisors (see below), whose sum is σ = 769680756. Its totient is φ = 256560250.

The previous prime is 513120497. The next prime is 513120527. The reversal of 513120502 is 205021315.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 513120502.

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 as a sum of consecutive naturals, namely, 128280124 + ... + 128280127.

It is an arithmetic number, because the mean of its divisors is an integer number (192420189).

Almost surely, 2^513120502 is an apocalyptic number.

513120502 is a deficient number, since it is larger than the sum of its proper divisors (256560254).

513120502 is a wasteful number, since it uses less digits than its factorization.

513120502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256560253.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 513120502 is about 22652.1632962505. The cubic root of 513120502 is about 800.5831695799.

Adding to 513120502 its reverse (205021315), we get a palindrome (718141817).

The spelling of 513120502 in words is "five hundred thirteen million, one hundred twenty thousand, five hundred two".