23855775 has 12 divisors (see below), whose sum is σ = 39441672. Its totient is φ = 12723040.

The previous prime is 23855759. The next prime is 23855813. The reversal of 23855775 is 57755832.

It is not a de Polignac number, because 23855775 - 2⁴ = 23855759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158964 + ... + 159113.

It is an arithmetic number, because the mean of its divisors is an integer number (3286806).

Almost surely, 2^23855775 is an apocalyptic number.

23855775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23855775 is a deficient number, since it is larger than the sum of its proper divisors (15585897).

23855775 is a wasteful number, since it uses less digits than its factorization.

23855775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318090 (or 318085 counting only the distinct ones).

The product of its digits is 294000, while the sum is 42.

The square root of 23855775 is about 4884.2374020926. The cubic root of 23855775 is about 287.8709515397.

The spelling of 23855775 in words is "twenty-three million, eight hundred fifty-five thousand, seven hundred seventy-five".