520120 has 16 divisors (see below), whose sum is σ = 1170360. Its totient is φ = 208032.

The previous prime is 520111. The next prime is 520123. The reversal of 520120 is 21025.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 520097 and 520106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520123) 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, 6462 + ... + 6541.

2⁵²⁰¹²⁰ is an apocalyptic number.

It is an amenable number.

520120 is an abundant number, since it is smaller than the sum of its proper divisors (650240).

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

520120 is a wasteful number, since it uses less digits than its factorization.

520120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13014 (or 13010 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 520120 is about 721.1934553225. The cubic root of 520120 is about 80.4207004280.

Adding to 520120 its reverse (21025), we get a palindrome (541145).

The spelling of 520120 in words is "five hundred twenty thousand, one hundred twenty".