22225087 has 2 divisors, whose sum is σ = 22225088. Its totient is φ = 22225086.

The previous prime is 22225081. The next prime is 22225111. The reversal of 22225087 is 78052222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22225087 - 2⁷ = 22224959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22225081) 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, 11112543 + 11112544.

It is an arithmetic number, because the mean of its divisors is an integer number (11112544).

Almost surely, 2^22225087 is an apocalyptic number.

22225087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22225087 is an equidigital number, since it uses as much as digits as its factorization.

22225087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 22225087 is about 4714.3490536871. The cubic root of 22225087 is about 281.1563024839.

The spelling of 22225087 in words is "twenty-two million, two hundred twenty-five thousand, eighty-seven".