2255645 has 24 divisors (see below), whose sum is σ = 3300864. Its totient is φ = 1449216.

The previous prime is 2255639. The next prime is 2255657. The reversal of 2255645 is 5465522.

2255645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2255645 - 2⁶ = 2255581 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2²¹ + 5³ + 5⁷ + 6 + 4³ + 5⁷ .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10004 + ... + 10226.

It is an arithmetic number, because the mean of its divisors is an integer number (137536).

2^2255645 is an apocalyptic number.

It is an amenable number.

2255645 is a deficient number, since it is larger than the sum of its proper divisors (1045219).

2255645 is a wasteful number, since it uses less digits than its factorization.

2255645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 252 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 2255645 is about 1501.8804879217. The cubic root of 2255645 is about 131.1465640078.

The spelling of 2255645 in words is "two million, two hundred fifty-five thousand, six hundred forty-five".