22091255 has 8 divisors (see below), whose sum is σ = 26535600. Its totient is φ = 17655616.

The previous prime is 22091239. The next prime is 22091273. The reversal of 22091255 is 55219022.

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 22091255 - 2⁴ = 22091239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6731 + ... + 9459.

It is an arithmetic number, because the mean of its divisors is an integer number (3316950).

Almost surely, 2^22091255 is an apocalyptic number.

22091255 is a deficient number, since it is larger than the sum of its proper divisors (4444345).

22091255 is a wasteful number, since it uses less digits than its factorization.

22091255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 22091255 is about 4700.1335087421. The cubic root of 22091255 is about 280.5908230162.

The spelling of 22091255 in words is "twenty-two million, ninety-one thousand, two hundred fifty-five".