22755217 has 8 divisors (see below), whose sum is σ = 24010560. Its totient is φ = 21505680.

The previous prime is 22755203. The next prime is 22755223. The reversal of 22755217 is 71255722.

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 22755217 - 2¹⁵ = 22722449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22755917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8367 + ... + 10747.

It is an arithmetic number, because the mean of its divisors is an integer number (3001320).

Almost surely, 2^22755217 is an apocalyptic number.

It is an amenable number.

22755217 is a deficient number, since it is larger than the sum of its proper divisors (1255343).

22755217 is a wasteful number, since it uses less digits than its factorization.

22755217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903.

The product of its digits is 9800, while the sum is 31.

The square root of 22755217 is about 4770.2428659346. The cubic root of 22755217 is about 283.3742130942.

The spelling of 22755217 in words is "twenty-two million, seven hundred fifty-five thousand, two hundred seventeen".