522890 has 8 divisors (see below), whose sum is σ = 941220. Its totient is φ = 209152.

The previous prime is 522887. The next prime is 522919. The reversal of 522890 is 98225.

It can be written as a sum of positive squares in 2 ways, for example, as 516961 + 5929 = 719^2 + 77^2 .

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

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, 26135 + ... + 26154.

2⁵²²⁸⁹⁰ is an apocalyptic number.

522890 is a deficient number, since it is larger than the sum of its proper divisors (418330).

522890 is a wasteful number, since it uses less digits than its factorization.

522890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52296.

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

The square root of 522890 is about 723.1113330601. Note that the first 3 decimals coincide. The cubic root of 522890 is about 80.5632130828.

The spelling of 522890 in words is "five hundred twenty-two thousand, eight hundred ninety".