520530501130 has 32 divisors (see below), whose sum is σ = 967710536784. Its totient is φ = 201485246976.

The previous prime is 520530501079. The next prime is 520530501167. The reversal of 520530501130 is 31105035025.

It can be written as a sum of positive squares in 8 ways, for example, as 317564933841 + 202965567289 = 563529^2 + 450517^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520530501095 and 520530501104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6688249 + ... + 6765628.

Almost surely, 2^520530501130 is an apocalyptic number.

520530501130 is a deficient number, since it is larger than the sum of its proper divisors (447180035654).

520530501130 is a wasteful number, since it uses less digits than its factorization.

520530501130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13454010.

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 520530501130 its reverse (31105035025), we get a palindrome (551635536155).

The spelling of 520530501130 in words is "five hundred twenty billion, five hundred thirty million, five hundred one thousand, one hundred thirty".