22005255 has 8 divisors (see below), whose sum is σ = 35208432. Its totient is φ = 11736128.

The previous prime is 22005241. The next prime is 22005271. The reversal of 22005255 is 55250022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22005255 - 2⁷ = 22005127 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 733494 + ... + 733523.

It is an arithmetic number, because the mean of its divisors is an integer number (4401054).

Almost surely, 2^22005255 is an apocalyptic number.

22005255 is a deficient number, since it is larger than the sum of its proper divisors (13203177).

22005255 is a wasteful number, since it uses less digits than its factorization.

22005255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467025.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 22005255 is about 4690.9759112577. The cubic root of 22005255 is about 280.2262414662.

Adding to 22005255 its reverse (55250022), we get a palindrome (77255277).

The spelling of 22005255 in words is "twenty-two million, five thousand, two hundred fifty-five".