12566226 has 16 divisors (see below), whose sum is σ = 25172928. Its totient is φ = 4182000.

The previous prime is 12566207. The next prime is 12566227. The reversal of 12566226 is 62266521.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12566193 and 12566202.

It is not an unprimeable number, because it can be changed into a prime (12566227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3651 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (1573308).

Almost surely, 2^12566226 is an apocalyptic number.

12566226 is an abundant number, since it is smaller than the sum of its proper divisors (12606702).

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

12566226 is a wasteful number, since it uses less digits than its factorization.

12566226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377.

The product of its digits is 8640, while the sum is 30.

The square root of 12566226 is about 3544.8873042736. The cubic root of 12566226 is about 232.4885784654.

The spelling of 12566226 in words is "twelve million, five hundred sixty-six thousand, two hundred twenty-six".