522090 has 24 divisors (see below), whose sum is σ = 1357668. Its totient is φ = 139200.

The previous prime is 522083. The next prime is 522113. The reversal of 522090 is 90225.

It can be written as a sum of positive squares in 2 ways, for example, as 488601 + 33489 = 699^2 + 183^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2811 + ... + 2990.

2⁵²²⁰⁹⁰ is an apocalyptic number.

522090 is an abundant number, since it is smaller than the sum of its proper divisors (835578).

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

522090 is a wasteful number, since it uses less digits than its factorization.

522090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5814 (or 5811 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 522090 is about 722.5579561530. The cubic root of 522090 is about 80.5221059874.

The spelling of 522090 in words is "five hundred twenty-two thousand, ninety".