22252245 has 16 divisors (see below), whose sum is σ = 35662272. Its totient is φ = 11848320.

The previous prime is 22252229. The next prime is 22252261. The reversal of 22252245 is 54225222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22252229) and next prime (22252261).

It is not a de Polignac number, because 22252245 - 2⁴ = 22252229 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16185 + ... + 17505.

It is an arithmetic number, because the mean of its divisors is an integer number (2228892).

Almost surely, 2^22252245 is an apocalyptic number.

It is an amenable number.

22252245 is a deficient number, since it is larger than the sum of its proper divisors (13410027).

22252245 is a wasteful number, since it uses less digits than its factorization.

22252245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452.

The product of its digits is 3200, while the sum is 24.

The square root of 22252245 is about 4717.2285295500. The cubic root of 22252245 is about 281.2707757492.

Adding to 22252245 its reverse (54225222), we get a palindrome (76477467).

The spelling of 22252245 in words is "twenty-two million, two hundred fifty-two thousand, two hundred forty-five".