522023 has 4 divisors (see below), whose sum is σ = 529248. Its totient is φ = 514800.

The previous prime is 522017. The next prime is 522037. The reversal of 522023 is 320225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 522023 - 2⁸ = 521767 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 521989 and 522007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3503 + ... + 3648.

It is an arithmetic number, because the mean of its divisors is an integer number (132312).

2⁵²²⁰²³ is an apocalyptic number.

522023 is a deficient number, since it is larger than the sum of its proper divisors (7225).

522023 is an equidigital number, since it uses as much as digits as its factorization.

522023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7224.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 522023 is about 722.5115916025. The cubic root of 522023 is about 80.5186613630.

Adding to 522023 its reverse (320225), we get a palindrome (842248).

The spelling of 522023 in words is "five hundred twenty-two thousand, twenty-three".