22052249 has 4 divisors (see below), whose sum is σ = 22565136. Its totient is φ = 21539364.

The previous prime is 22052237. The next prime is 22052299. The reversal of 22052249 is 94225022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22052249 - 2⁸ = 22051993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22052299) 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 in 3 ways as a sum of consecutive naturals, for example, 256379 + ... + 256464.

It is an arithmetic number, because the mean of its divisors is an integer number (5641284).

Almost surely, 2^22052249 is an apocalyptic number.

It is an amenable number.

22052249 is a deficient number, since it is larger than the sum of its proper divisors (512887).

22052249 is an equidigital number, since it uses as much as digits as its factorization.

22052249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512886.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22052249 is about 4695.9822188760. The cubic root of 22052249 is about 280.4255815578.

The spelling of 22052249 in words is "twenty-two million, fifty-two thousand, two hundred forty-nine".