522642223 has 2 divisors, whose sum is σ = 522642224. Its totient is φ = 522642222.

The previous prime is 522642191. The next prime is 522642233. The reversal of 522642223 is 322246225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 522642223 - 2⁵ = 522642191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 522642191 and 522642200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522642233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261321111 + 261321112.

It is an arithmetic number, because the mean of its divisors is an integer number (261321112).

Almost surely, 2^522642223 is an apocalyptic number.

522642223 is a deficient number, since it is larger than the sum of its proper divisors (1).

522642223 is an equidigital number, since it uses as much as digits as its factorization.

522642223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 28.

The square root of 522642223 is about 22861.3696658796. The cubic root of 522642223 is about 805.5048582650.

Adding to 522642223 its reverse (322246225), we get a palindrome (844888448).

The spelling of 522642223 in words is "five hundred twenty-two million, six hundred forty-two thousand, two hundred twenty-three".