22916251 has 2 divisors, whose sum is σ = 22916252. Its totient is φ = 22916250.

The previous prime is 22916237. The next prime is 22916263. The reversal of 22916251 is 15261922.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22916251 is a prime.

It is not a weakly prime, because it can be changed into another prime (22916851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11458125 + 11458126.

It is an arithmetic number, because the mean of its divisors is an integer number (11458126).

Almost surely, 2^22916251 is an apocalyptic number.

22916251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22916251 is an equidigital number, since it uses as much as digits as its factorization.

22916251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 22916251 is about 4787.0921236174. The cubic root of 22916251 is about 284.0411027926.

The spelling of 22916251 in words is "twenty-two million, nine hundred sixteen thousand, two hundred fifty-one".