22632251 has 2 divisors, whose sum is σ = 22632252. Its totient is φ = 22632250.

The previous prime is 22632229. The next prime is 22632257. The reversal of 22632251 is 15223622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22632251 - 2⁶ = 22632187 is a prime.

It is not a weakly prime, because it can be changed into another prime (22632257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11316125 + 11316126.

It is an arithmetic number, because the mean of its divisors is an integer number (11316126).

Almost surely, 2^22632251 is an apocalyptic number.

22632251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22632251 is an equidigital number, since it uses as much as digits as its factorization.

22632251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 22632251 is about 4757.3365447485. The cubic root of 22632251 is about 282.8628527156.

Adding to 22632251 its reverse (15223622), we get a palindrome (37855873).

The spelling of 22632251 in words is "twenty-two million, six hundred thirty-two thousand, two hundred fifty-one".