520316620 has 24 divisors (see below), whose sum is σ = 1156940064. Its totient is φ = 195883776.

The previous prime is 520316611. The next prime is 520316627. The reversal of 520316620 is 26613025.

It is not an unprimeable number, because it can be changed into a prime (520316627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764832 + ... + 765511.

It is an arithmetic number, because the mean of its divisors is an integer number (48205836).

Almost surely, 2^520316620 is an apocalyptic number.

It is an amenable number.

520316620 is an abundant number, since it is smaller than the sum of its proper divisors (636623444).

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

520316620 is a wasteful number, since it uses less digits than its factorization.

520316620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530369 (or 1530367 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 520316620 is about 22810.4497982832. The cubic root of 520316620 is about 804.3083291407.

Adding to 520316620 its reverse (26613025), we get a palindrome (546929645).

The spelling of 520316620 in words is "five hundred twenty million, three hundred sixteen thousand, six hundred twenty".