520280 has 16 divisors (see below), whose sum is σ = 1170720. Its totient is φ = 208096.

The previous prime is 520279. The next prime is 520291. The reversal of 520280 is 82025.

It is a happy number.

It is a congruent number.

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, 6464 + ... + 6543.

It is an arithmetic number, because the mean of its divisors is an integer number (73170).

2⁵²⁰²⁸⁰ is an apocalyptic number.

It is an amenable number.

520280 is an abundant number, since it is smaller than the sum of its proper divisors (650440).

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

520280 is a wasteful number, since it uses less digits than its factorization.

520280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13018 (or 13014 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 520280 is about 721.3043740336. The cubic root of 520280 is about 80.4289459565.

The spelling of 520280 in words is "five hundred twenty thousand, two hundred eighty".