520731060 has 24 divisors (see below), whose sum is σ = 1458047136. Its totient is φ = 138861600.

The previous prime is 520731059. The next prime is 520731067. The reversal of 520731060 is 60137025.

It is a self number, because there is not a number n which added to its sum of digits gives 520731060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520731067) 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, 4339366 + ... + 4339485.

It is an arithmetic number, because the mean of its divisors is an integer number (60751964).

Almost surely, 2^520731060 is an apocalyptic number.

It is an amenable number.

520731060 is an abundant number, since it is smaller than the sum of its proper divisors (937316076).

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

520731060 is a wasteful number, since it uses less digits than its factorization.

520731060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8678863 (or 8678861 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 520731060 is about 22819.5324229047. The cubic root of 520731060 is about 804.5218203545.

Adding to 520731060 its reverse (60137025), we get a palindrome (580868085).

The spelling of 520731060 in words is "five hundred twenty million, seven hundred thirty-one thousand, sixty".