22442553 has 24 divisors (see below), whose sum is σ = 39000000. Its totient is φ = 12148704.

The previous prime is 22442513. The next prime is 22442561. The reversal of 22442553 is 35524422.

It is a happy number.

It is not a de Polignac number, because 22442553 - 2¹² = 22438457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22442513) 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 23 ways as a sum of consecutive naturals, for example, 8178 + ... + 10571.

It is an arithmetic number, because the mean of its divisors is an integer number (1625000).

Almost surely, 2^22442553 is an apocalyptic number.

It is an amenable number.

22442553 is a deficient number, since it is larger than the sum of its proper divisors (16557447).

22442553 is a wasteful number, since it uses less digits than its factorization.

22442553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18781 (or 18778 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 22442553 is about 4737.3571746281. The cubic root of 22442553 is about 282.0703385731.

Adding to 22442553 its reverse (35524422), we get a palindrome (57966975).

The spelling of 22442553 in words is "twenty-two million, four hundred forty-two thousand, five hundred fifty-three".