22554265 has 4 divisors (see below), whose sum is σ = 27065124. Its totient is φ = 18043408.

The previous prime is 22554253. The next prime is 22554269. The reversal of 22554265 is 56245522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3640464 + 18913801 = 1908^2 + 4349^2 .

It is a cyclic number.

It is not a de Polignac number, because 22554265 - 2⁷ = 22554137 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22554269) 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 3 ways as a sum of consecutive naturals, for example, 2255422 + ... + 2255431.

It is an arithmetic number, because the mean of its divisors is an integer number (6766281).

Almost surely, 2^22554265 is an apocalyptic number.

It is an amenable number.

22554265 is a deficient number, since it is larger than the sum of its proper divisors (4510859).

22554265 is an equidigital number, since it uses as much as digits as its factorization.

22554265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510858.

The product of its digits is 24000, while the sum is 31.

The square root of 22554265 is about 4749.1330787840. The cubic root of 22554265 is about 282.5375834300.

Adding to 22554265 its reverse (56245522), we get a palindrome (78799787).

The spelling of 22554265 in words is "twenty-two million, five hundred fifty-four thousand, two hundred sixty-five".