22254505 has 32 divisors (see below), whose sum is σ = 33465600. Its totient is φ = 13830912.

The previous prime is 22254473. The next prime is 22254511. The reversal of 22254505 is 50545222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22254505 - 2⁵ = 22254473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22254505.

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 31 ways as a sum of consecutive naturals, for example, 26431 + ... + 27259.

It is an arithmetic number, because the mean of its divisors is an integer number (1045800).

Almost surely, 2^22254505 is an apocalyptic number.

It is an amenable number.

22254505 is a deficient number, since it is larger than the sum of its proper divisors (11211095).

22254505 is a wasteful number, since it uses less digits than its factorization.

22254505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 22254505 is about 4717.4680709041. The cubic root of 22254505 is about 281.2802976414.

Adding to 22254505 its reverse (50545222), we get a palindrome (72799727).

The spelling of 22254505 in words is "twenty-two million, two hundred fifty-four thousand, five hundred five".