22055249 has 2 divisors, whose sum is σ = 22055250. Its totient is φ = 22055248.

The previous prime is 22055233. The next prime is 22055281. The reversal of 22055249 is 94255022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19864849 + 2190400 = 4457^2 + 1480^2 .

It is a cyclic number.

It is not a de Polignac number, because 22055249 - 2⁴ = 22055233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22055149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11027624 + 11027625.

It is an arithmetic number, because the mean of its divisors is an integer number (11027625).

Almost surely, 2^22055249 is an apocalyptic number.

It is an amenable number.

22055249 is a deficient number, since it is larger than the sum of its proper divisors (1).

22055249 is an equidigital number, since it uses as much as digits as its factorization.

22055249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 22055249 is about 4696.3016300063. The cubic root of 22055249 is about 280.4382973977.

The spelling of 22055249 in words is "twenty-two million, fifty-five thousand, two hundred forty-nine".