520093013 has 4 divisors (see below), whose sum is σ = 567374208. Its totient is φ = 472811820.

The previous prime is 520093003. The next prime is 520093027. The reversal of 520093013 is 310390025.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520093013 - 2¹² = 520088917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520093013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520093003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23640581 + ... + 23640602.

It is an arithmetic number, because the mean of its divisors is an integer number (141843552).

Almost surely, 2^520093013 is an apocalyptic number.

It is an amenable number.

520093013 is a deficient number, since it is larger than the sum of its proper divisors (47281195).

520093013 is a wasteful number, since it uses less digits than its factorization.

520093013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47281194.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 520093013 is about 22805.5478557302. The cubic root of 520093013 is about 804.1930949831.

The spelling of 520093013 in words is "five hundred twenty million, ninety-three thousand, thirteen".