522261 has 24 divisors (see below), whose sum is σ = 836160. Its totient is φ = 321552.

The previous prime is 522259. The next prime is 522281. The reversal of 522261 is 162225.

It is not a de Polignac number, because 522261 - 2¹ = 522259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17995 + ... + 18023.

It is an arithmetic number, because the mean of its divisors is an integer number (34840).

2⁵²²²⁶¹ is an apocalyptic number.

It is an amenable number.

522261 is a deficient number, since it is larger than the sum of its proper divisors (313899).

522261 is a wasteful number, since it uses less digits than its factorization.

522261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 55 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 522261 is about 722.6762760739. The cubic root of 522261 is about 80.5308961558.

Adding to 522261 its reverse (162225), we get a palindrome (684486).

The spelling of 522261 in words is "five hundred twenty-two thousand, two hundred sixty-one".