22551849 has 12 divisors (see below), whose sum is σ = 33626112. Its totient is φ = 14549400.

The previous prime is 22551829. The next prime is 22551853. The reversal of 22551849 is 94815522.

22551849 is a `hidden beast` number, since 22 + 551 + 84 + 9 = 666.

It is not a de Polignac number, because 22551849 - 2⁷ = 22551721 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40137 + ... + 40694.

It is an arithmetic number, because the mean of its divisors is an integer number (2802176).

Almost surely, 2^22551849 is an apocalyptic number.

It is an amenable number.

22551849 is a deficient number, since it is larger than the sum of its proper divisors (11074263).

22551849 is a wasteful number, since it uses less digits than its factorization.

22551849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80868 (or 80865 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 22551849 is about 4748.8787097588. The cubic root of 22551849 is about 282.5274946482.

The spelling of 22551849 in words is "twenty-two million, five hundred fifty-one thousand, eight hundred forty-nine".