522601223 has 4 divisors (see below), whose sum is σ = 522856608. Its totient is φ = 522345840.

The previous prime is 522601217. The next prime is 522601237. The reversal of 522601223 is 322106225.

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 522601223 - 2⁴ = 522601207 is a prime.

It is a super-2 number, since 2×522601223² = 546224076562191458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522601243) 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, 124598 + ... + 128723.

It is an arithmetic number, because the mean of its divisors is an integer number (130714152).

Almost surely, 2^522601223 is an apocalyptic number.

522601223 is a deficient number, since it is larger than the sum of its proper divisors (255385).

522601223 is a wasteful number, since it uses less digits than its factorization.

522601223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255384.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 522601223 is about 22860.4729391148. The cubic root of 522601223 is about 805.4837944210.

Adding to 522601223 its reverse (322106225), we get a palindrome (844707448).

The spelling of 522601223 in words is "five hundred twenty-two million, six hundred one thousand, two hundred twenty-three".