522630 has 24 divisors (see below), whose sum is σ = 1359072. Its totient is φ = 139344.

The previous prime is 522623. The next prime is 522637. The reversal of 522630 is 36225.

It is an interprime number because it is at equal distance from previous prime (522623) and next prime (522637).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 5⁷ + 2¹⁵ + 6⁷ + 2¹⁷ + 3⁶ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2814 + ... + 2993.

It is an arithmetic number, because the mean of its divisors is an integer number (56628).

2⁵²²⁶³⁰ is an apocalyptic number.

522630 is an abundant number, since it is smaller than the sum of its proper divisors (836442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522630 is a wasteful number, since it uses less digits than its factorization.

522630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820 (or 5817 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 522630 is about 722.9315320278. The cubic root of 522630 is about 80.5498578786.

Adding to 522630 its reverse (36225), we get a palindrome (558855).

The spelling of 522630 in words is "five hundred twenty-two thousand, six hundred thirty".