522656 has 12 divisors (see below), whose sum is σ = 1029042. Its totient is φ = 261312.

The previous prime is 522637. The next prime is 522659. The reversal of 522656 is 656225.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 512656 + 10000 = 716^2 + 100^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (522659) by changing a digit.

522656 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 8135 + ... + 8198.

2⁵²²⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

522656 is a deficient number, since it is larger than the sum of its proper divisors (506386).

522656 is a wasteful number, since it uses less digits than its factorization.

522656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16343 (or 16335 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 522656 is about 722.9495141433. The cubic root of 522656 is about 80.5511935983.

The spelling of 522656 in words is "five hundred twenty-two thousand, six hundred fifty-six".