22008751 has 2 divisors, whose sum is σ = 22008752. Its totient is φ = 22008750.

The previous prime is 22008713. The next prime is 22008781. The reversal of 22008751 is 15780022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22008751 - 2¹⁷ = 21877679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22008781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11004375 + 11004376.

It is an arithmetic number, because the mean of its divisors is an integer number (11004376).

Almost surely, 2^22008751 is an apocalyptic number.

22008751 is a deficient number, since it is larger than the sum of its proper divisors (1).

22008751 is an equidigital number, since it uses as much as digits as its factorization.

22008751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 22008751 is about 4691.3485268097. The cubic root of 22008751 is about 280.2410806348.

Adding to 22008751 its reverse (15780022), we get a palindrome (37788773).

The spelling of 22008751 in words is "twenty-two million, eight thousand, seven hundred fifty-one".