522623 has 2 divisors, whose sum is σ = 522624. Its totient is φ = 522622.

The previous prime is 522601. The next prime is 522637. The reversal of 522623 is 326225.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 522623 - 2¹⁶ = 457087 is a prime.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 522595 and 522604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261311 + 261312.

It is an arithmetic number, because the mean of its divisors is an integer number (261312).

2⁵²²⁶²³ is an apocalyptic number.

522623 is a deficient number, since it is larger than the sum of its proper divisors (1).

522623 is an equidigital number, since it uses as much as digits as its factorization.

522623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 20.

The square root of 522623 is about 722.9266906125. The cubic root of 522623 is about 80.5494982542.

Adding to 522623 its reverse (326225), we get a palindrome (848848).

The spelling of 522623 in words is "five hundred twenty-two thousand, six hundred twenty-three".