522239 has 2 divisors, whose sum is σ = 522240. Its totient is φ = 522238.

The previous prime is 522233. The next prime is 522251. The reversal of 522239 is 932225.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522239 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261119 + 261120.

It is an arithmetic number, because the mean of its divisors is an integer number (261120).

2⁵²²²³⁹ is an apocalyptic number.

522239 is a deficient number, since it is larger than the sum of its proper divisors (1).

522239 is an equidigital number, since it uses as much as digits as its factorization.

522239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 522239 is about 722.6610547138. The cubic root of 522239 is about 80.5297653645.

The spelling of 522239 in words is "five hundred twenty-two thousand, two hundred thirty-nine".