520160013 has 12 divisors (see below), whose sum is σ = 751681788. Its totient is φ = 346616640.

The previous prime is 520159963. The next prime is 520160021. The reversal of 520160013 is 310061025.

520160013 is a `hidden beast` number, since 52 + 0 + 1 + 600 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119639844 + 400520169 = 10938^2 + 20013^2 .

It is not a de Polignac number, because 520160013 - 2¹² = 520155917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520160083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10131 + ... + 33807.

It is an arithmetic number, because the mean of its divisors is an integer number (62640149).

Almost surely, 2^520160013 is an apocalyptic number.

It is an amenable number.

520160013 is a deficient number, since it is larger than the sum of its proper divisors (231521775).

520160013 is a wasteful number, since it uses less digits than its factorization.

520160013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26124 (or 26121 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 520160013 is about 22807.0167492375. The cubic root of 520160013 is about 804.2276263858.

The spelling of 520160013 in words is "five hundred twenty million, one hundred sixty thousand, thirteen".