23555889 has 12 divisors (see below), whose sum is σ = 38886016. Its totient is φ = 13460472.

The previous prime is 23555869. The next prime is 23555891. The reversal of 23555889 is 98855532.

It is not a de Polignac number, because 23555889 - 2⁹ = 23555377 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23555869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186889 + ... + 187014.

Almost surely, 2^23555889 is an apocalyptic number.

It is an amenable number.

23555889 is a deficient number, since it is larger than the sum of its proper divisors (15330127).

23555889 is a wasteful number, since it uses less digits than its factorization.

23555889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373916 (or 373913 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 23555889 is about 4853.4409443198. The cubic root of 23555889 is about 286.6596060697.

The spelling of 23555889 in words is "twenty-three million, five hundred fifty-five thousand, eight hundred eighty-nine".