22355609 has 8 divisors (see below), whose sum is σ = 24555840. Its totient is φ = 20257776.

The previous prime is 22355587. The next prime is 22355611. The reversal of 22355609 is 90655322.

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 22355609 - 2⁸ = 22355353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22355639) by changing a digit.

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, 25142 + ... + 26015.

It is an arithmetic number, because the mean of its divisors is an integer number (3069480).

Almost surely, 2^22355609 is an apocalyptic number.

It is an amenable number.

22355609 is a deficient number, since it is larger than the sum of its proper divisors (2200231).

22355609 is a wasteful number, since it uses less digits than its factorization.

22355609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51199.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 22355609 is about 4728.1718454388. The cubic root of 22355609 is about 281.7056138543.

The spelling of 22355609 in words is "twenty-two million, three hundred fifty-five thousand, six hundred nine".