522606 has 32 divisors (see below), whose sum is σ = 1248768. Its totient is φ = 142560.

The previous prime is 522601. The next prime is 522623. The reversal of 522606 is 606225.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522601) by changing a digit.

522606 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696 + ... + 1236.

It is an arithmetic number, because the mean of its divisors is an integer number (39024).

2⁵²²⁶⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624384).

522606 is an abundant number, since it is smaller than the sum of its proper divisors (726162).

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

522606 is a wasteful number, since it uses less digits than its factorization.

522606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 522606 is about 722.9149327549. The cubic root of 522606 is about 80.5486248672.

It can be divided in two parts, 522 and 606, that added together give a triangular number (1128 = T₄₇).

The spelling of 522606 in words is "five hundred twenty-two thousand, six hundred six".