23185855 has 16 divisors (see below), whose sum is σ = 34689024. Its totient is φ = 14453280.

The previous prime is 23185853. The next prime is 23185859. The reversal of 23185855 is 55858132.

It is not a de Polignac number, because 23185855 - 2¹ = 23185853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23185853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29727 + ... + 30496.

It is an arithmetic number, because the mean of its divisors is an integer number (2168064).

Almost surely, 2^23185855 is an apocalyptic number.

23185855 is a deficient number, since it is larger than the sum of its proper divisors (11503169).

23185855 is a wasteful number, since it uses less digits than its factorization.

23185855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60246.

The product of its digits is 48000, while the sum is 37.

The square root of 23185855 is about 4815.1692597457. The cubic root of 23185855 is about 285.1506539078.

The spelling of 23185855 in words is "twenty-three million, one hundred eighty-five thousand, eight hundred fifty-five".