520468217 has 4 divisors (see below), whose sum is σ = 520530816. Its totient is φ = 520405620.

The previous prime is 520468189. The next prime is 520468229. The reversal of 520468217 is 712864025.

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 520468217 - 2⁶ = 520468153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520468297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16493 + ... + 36234.

It is an arithmetic number, because the mean of its divisors is an integer number (130132704).

Almost surely, 2^520468217 is an apocalyptic number.

It is an amenable number.

520468217 is a deficient number, since it is larger than the sum of its proper divisors (62599).

520468217 is an equidigital number, since it uses as much as digits as its factorization.

520468217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62598.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 520468217 is about 22813.7725288914. The cubic root of 520468217 is about 804.3864347180.

The spelling of 520468217 in words is "five hundred twenty million, four hundred sixty-eight thousand, two hundred seventeen".