23255845 has 4 divisors (see below), whose sum is σ = 27907020. Its totient is φ = 18604672.

The previous prime is 23255839. The next prime is 23255849. The reversal of 23255845 is 54855232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13527684 + 9728161 = 3678^2 + 3119^2 .

It is a cyclic number.

It is not a de Polignac number, because 23255845 - 2⁷ = 23255717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23255845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23255849) 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 3 ways as a sum of consecutive naturals, for example, 2325580 + ... + 2325589.

It is an arithmetic number, because the mean of its divisors is an integer number (6976755).

Almost surely, 2^23255845 is an apocalyptic number.

It is an amenable number.

23255845 is a deficient number, since it is larger than the sum of its proper divisors (4651175).

23255845 is an equidigital number, since it uses as much as digits as its factorization.

23255845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4651174.

The product of its digits is 48000, while the sum is 34.

The square root of 23255845 is about 4822.4314406739. The cubic root of 23255845 is about 285.4372891014.

The spelling of 23255845 in words is "twenty-three million, two hundred fifty-five thousand, eight hundred forty-five".