520224 has 24 divisors (see below), whose sum is σ = 1365840. Its totient is φ = 173376.

The previous prime is 520213. The next prime is 520241. The reversal of 520224 is 422025.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2614 + ... + 2805.

It is an arithmetic number, because the mean of its divisors is an integer number (56910).

2⁵²⁰²²⁴ is an apocalyptic number.

It is an amenable number.

520224 is an abundant number, since it is smaller than the sum of its proper divisors (845616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520224 is a wasteful number, since it uses less digits than its factorization.

520224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432 (or 5424 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 520224 is about 721.2655544250. The cubic root of 520224 is about 80.4260602138.

Adding to 520224 its reverse (422025), we get a palindrome (942249).

The spelling of 520224 in words is "five hundred twenty thousand, two hundred twenty-four".