22755321 has 12 divisors (see below), whose sum is σ = 32925360. Its totient is φ = 15144120.

The previous prime is 22755319. The next prime is 22755323. The reversal of 22755321 is 12355722.

It is an interprime number because it is at equal distance from previous prime (22755319) and next prime (22755323).

It is not a de Polignac number, because 22755321 - 2¹ = 22755319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22755323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4390 + ... + 8048.

It is an arithmetic number, because the mean of its divisors is an integer number (2743780).

Almost surely, 2^22755321 is an apocalyptic number.

It is an amenable number.

22755321 is a deficient number, since it is larger than the sum of its proper divisors (10170039).

22755321 is a wasteful number, since it uses less digits than its factorization.

22755321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356 (or 4353 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 22755321 is about 4770.2537668346. The cubic root of 22755321 is about 283.3746448029.

The spelling of 22755321 in words is "twenty-two million, seven hundred fifty-five thousand, three hundred twenty-one".