12255805 has 8 divisors (see below), whose sum is σ = 14725944. Its totient is φ = 9792000.

The previous prime is 12255799. The next prime is 12255811. The reversal of 12255805 is 50855221.

12255805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12255799) and next prime (12255811).

It can be written as a sum of positive squares in 4 ways, for example, as 54756 + 12201049 = 234^2 + 3493^2 .

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

It is not a de Polignac number, because 12255805 - 2³ = 12255797 is a prime.

It is a Duffinian number.

It is a congruent 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, 5905 + ... + 7705.

It is an arithmetic number, because the mean of its divisors is an integer number (1840743).

Almost surely, 2^12255805 is an apocalyptic number.

It is an amenable number.

12255805 is a deficient number, since it is larger than the sum of its proper divisors (2470139).

12255805 is a wasteful number, since it uses less digits than its factorization.

12255805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 12255805 is about 3500.8291874926. The cubic root of 12255805 is about 230.5582218903.

The spelling of 12255805 in words is "twelve million, two hundred fifty-five thousand, eight hundred five".