522663 has 4 divisors (see below), whose sum is σ = 696888. Its totient is φ = 348440.

The previous prime is 522661. The next prime is 522673. The reversal of 522663 is 366225.

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 522663 - 2¹ = 522661 is a prime.

It is a super-2 number, since 2×522663² = 546353223138, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 522663.

It is not an unprimeable number, because it can be changed into a prime (522661) 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, 87108 + ... + 87113.

It is an arithmetic number, because the mean of its divisors is an integer number (174222).

2⁵²²⁶⁶³ is an apocalyptic number.

522663 is a deficient number, since it is larger than the sum of its proper divisors (174225).

522663 is a wasteful number, since it uses less digits than its factorization.

522663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174224.

The product of its digits is 2160, while the sum is 24.

The square root of 522663 is about 722.9543554057. The cubic root of 522663 is about 80.5515532076.

Adding to 522663 its reverse (366225), we get a palindrome (888888).

The spelling of 522663 in words is "five hundred twenty-two thousand, six hundred sixty-three".