520289 has 16 divisors (see below), whose sum is σ = 673920. Its totient is φ = 389760.

The previous prime is 520279. The next prime is 520291. The reversal of 520289 is 982025.

It is not a de Polignac number, because 520289 - 2¹² = 516193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2117 + ... + 2349.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2⁵²⁰²⁸⁹ is an apocalyptic number.

It is an amenable number.

520289 is a deficient number, since it is larger than the sum of its proper divisors (153631).

520289 is a wasteful number, since it uses less digits than its factorization.

520289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 520289 is about 721.3106127044. The cubic root of 520289 is about 80.4294097172.

The spelling of 520289 in words is "five hundred twenty thousand, two hundred eighty-nine".