522722 has 8 divisors (see below), whose sum is σ = 809472. Its totient is φ = 252900.

The previous prime is 522719. The next prime is 522737. The reversal of 522722 is 227225.

522722 = 24² + 25² + ... + 116².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×522722³ = 428482995153333144, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 522694 and 522703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4154 + ... + 4277.

It is an arithmetic number, because the mean of its divisors is an integer number (101184).

2⁵²²⁷²² is an apocalyptic number.

522722 is a deficient number, since it is larger than the sum of its proper divisors (286750).

522722 is a wasteful number, since it uses less digits than its factorization.

522722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8464.

The product of its digits is 560, while the sum is 20.

The square root of 522722 is about 722.9951590433. The cubic root of 522722 is about 80.5545840725.

Adding to 522722 its reverse (227225), we get a palindrome (749947).

The spelling of 522722 in words is "five hundred twenty-two thousand, seven hundred twenty-two".