522213 has 4 divisors (see below), whose sum is σ = 696288. Its totient is φ = 348140.

The previous prime is 522211. The next prime is 522227. The reversal of 522213 is 312225.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 522213 - 2¹ = 522211 is a prime.

It is a d-powerful number, because it can be written as 5⁸ + 2⁹ + 2¹⁶ + 2¹⁶ + 1 + 3 .

It is a D-number.

522213 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 522192 and 522201.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87033 + ... + 87038.

It is an arithmetic number, because the mean of its divisors is an integer number (174072).

2⁵²²²¹³ is an apocalyptic number.

It is an amenable number.

522213 is a deficient number, since it is larger than the sum of its proper divisors (174075).

522213 is a wasteful number, since it uses less digits than its factorization.

522213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174074.

The product of its digits is 120, while the sum is 15.

The square root of 522213 is about 722.6430654203. The cubic root of 522213 is about 80.5284289338.

Adding to 522213 its reverse (312225), we get a palindrome (834438).

The spelling of 522213 in words is "five hundred twenty-two thousand, two hundred thirteen".