520090 has 8 divisors (see below), whose sum is σ = 936180. Its totient is φ = 208032.

The previous prime is 520073. The next prime is 520103. The reversal of 520090 is 90025.

It can be written as a sum of positive squares in 2 ways, for example, as 474721 + 45369 = 689^2 + 213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 14.

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, 25995 + ... + 26014.

2⁵²⁰⁰⁹⁰ is an apocalyptic number.

520090 is a deficient number, since it is larger than the sum of its proper divisors (416090).

520090 is a wasteful number, since it uses less digits than its factorization.

520090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52016.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 520090 is about 721.1726561649. The cubic root of 520090 is about 80.4191542031.

The spelling of 520090 in words is "five hundred twenty thousand, ninety".