22005056 has 14 divisors (see below), whose sum is σ = 43666410. Its totient is φ = 11002496.

The previous prime is 22005037. The next prime is 22005073. The reversal of 22005056 is 65050022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16321600 + 5683456 = 4040^2 + 2384^2 .

It is a congruent number.

It is an unprimeable 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, 171851 + ... + 171978.

Almost surely, 2^22005056 is an apocalyptic number.

It is an amenable number.

22005056 is a deficient number, since it is larger than the sum of its proper divisors (21661354).

22005056 is an equidigital number, since it uses as much as digits as its factorization.

22005056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343841 (or 343831 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 22005056 is about 4690.9547002716. The cubic root of 22005056 is about 280.2253967409.

Adding to 22005056 its reverse (65050022), we get a palindrome (87055078).

The spelling of 22005056 in words is "twenty-two million, five thousand, fifty-six".