22505033 has 2 divisors, whose sum is σ = 22505034. Its totient is φ = 22505032.

The previous prime is 22505027. The next prime is 22505047. The reversal of 22505033 is 33050522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15936064 + 6568969 = 3992^2 + 2563^2 .

It is a cyclic number.

It is not a de Polignac number, because 22505033 - 2⁶ = 22504969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22504996 and 22505014.

It is not a weakly prime, because it can be changed into another prime (22505003) 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 as a sum of consecutive naturals, namely, 11252516 + 11252517.

It is an arithmetic number, because the mean of its divisors is an integer number (11252517).

Almost surely, 2^22505033 is an apocalyptic number.

It is an amenable number.

22505033 is a deficient number, since it is larger than the sum of its proper divisors (1).

22505033 is an equidigital number, since it uses as much as digits as its factorization.

22505033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 22505033 is about 4743.9469853699. The cubic root of 22505033 is about 282.3318570253.

Adding to 22505033 its reverse (33050522), we get a palindrome (55555555).

The spelling of 22505033 in words is "twenty-two million, five hundred five thousand, thirty-three".