23555985 has 8 divisors (see below), whose sum is σ = 37689600. Its totient is φ = 12563184.

The previous prime is 23555971. The next prime is 23556007. The reversal of 23555985 is 58955532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23555985 - 2⁶ = 23555921 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 785185 + ... + 785214.

It is an arithmetic number, because the mean of its divisors is an integer number (4711200).

Almost surely, 2^23555985 is an apocalyptic number.

It is an amenable number.

23555985 is a deficient number, since it is larger than the sum of its proper divisors (14133615).

23555985 is a wasteful number, since it uses less digits than its factorization.

23555985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570407.

The product of its digits is 270000, while the sum is 42.

The square root of 23555985 is about 4853.4508342003. The cubic root of 23555985 is about 286.6599954880.

The spelling of 23555985 in words is "twenty-three million, five hundred fifty-five thousand, nine hundred eighty-five".