522218327 has 2 divisors, whose sum is σ = 522218328. Its totient is φ = 522218326.

The previous prime is 522218303. The next prime is 522218339. The reversal of 522218327 is 723812225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 522218327 - 2¹⁴ = 522201943 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 522218293 and 522218302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522218227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261109163 + 261109164.

It is an arithmetic number, because the mean of its divisors is an integer number (261109164).

Almost surely, 2^522218327 is an apocalyptic number.

522218327 is a deficient number, since it is larger than the sum of its proper divisors (1).

522218327 is an equidigital number, since it uses as much as digits as its factorization.

522218327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 522218327 is about 22852.0967746944. The cubic root of 522218327 is about 805.2870275154.

The spelling of 522218327 in words is "five hundred twenty-two million, two hundred eighteen thousand, three hundred twenty-seven".