520522013 has 8 divisors (see below), whose sum is σ = 577467360. Its totient is φ = 465180880.

The previous prime is 520522007. The next prime is 520522033. The reversal of 520522013 is 310225025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520522013 - 2⁶ = 520521949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520522033) 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, 400370 + ... + 401667.

It is an arithmetic number, because the mean of its divisors is an integer number (72183420).

Almost surely, 2^520522013 is an apocalyptic number.

It is an amenable number.

520522013 is a deficient number, since it is larger than the sum of its proper divisors (56945347).

520522013 is a wasteful number, since it uses less digits than its factorization.

520522013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802107.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 520522013 is about 22814.9515230693. The cubic root of 520522013 is about 804.4141477659.

Adding to 520522013 its reverse (310225025), we get a palindrome (830747038).

The spelling of 520522013 in words is "five hundred twenty million, five hundred twenty-two thousand, thirteen".