22250689 has 2 divisors, whose sum is σ = 22250690. Its totient is φ = 22250688.

The previous prime is 22250687. The next prime is 22250699. The reversal of 22250689 is 98605222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18318400 + 3932289 = 4280^2 + 1983^2 .

It is a cyclic number.

It is not a de Polignac number, because 22250689 - 2¹ = 22250687 is a prime.

Together with 22250687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22250687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11125344 + 11125345.

It is an arithmetic number, because the mean of its divisors is an integer number (11125345).

Almost surely, 2^22250689 is an apocalyptic number.

It is an amenable number.

22250689 is a deficient number, since it is larger than the sum of its proper divisors (1).

22250689 is an equidigital number, since it uses as much as digits as its factorization.

22250689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 22250689 is about 4717.0635993168. The cubic root of 22250689 is about 281.2642195938.

The spelling of 22250689 in words is "twenty-two million, two hundred fifty thousand, six hundred eighty-nine".