22504849 has 2 divisors, whose sum is σ = 22504850. Its totient is φ = 22504848.

The previous prime is 22504847. The next prime is 22504861. The reversal of 22504849 is 94840522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22467600 + 37249 = 4740^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 22504849 - 2¹ = 22504847 is a prime.

Together with 22504847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22504847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11252424 + 11252425.

It is an arithmetic number, because the mean of its divisors is an integer number (11252425).

Almost surely, 2^22504849 is an apocalyptic number.

It is an amenable number.

22504849 is a deficient number, since it is larger than the sum of its proper divisors (1).

22504849 is an equidigital number, since it uses as much as digits as its factorization.

22504849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 22504849 is about 4743.9275921962. The cubic root of 22504849 is about 282.3310875796.

The spelling of 22504849 in words is "twenty-two million, five hundred four thousand, eight hundred forty-nine".