2223566 has 12 divisors (see below), whose sum is σ = 3544008. Its totient is φ = 1046112.

The previous prime is 2223563. The next prime is 2223581. The reversal of 2223566 is 6653222.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 2¹⁷ + 3 + 5⁹ + 6 + 6⁵ .

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223563) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1346 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (295334).

2^2223566 is an apocalyptic number.

2223566 is a deficient number, since it is larger than the sum of its proper divisors (1320442).

2223566 is a wasteful number, since it uses less digits than its factorization.

2223566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883 (or 3866 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 2223566 is about 1491.1626336520. The cubic root of 2223566 is about 130.5218862995.

Adding to 2223566 its reverse (6653222), we get a palindrome (8876788).

The spelling of 2223566 in words is "two million, two hundred twenty-three thousand, five hundred sixty-six".