2255439 has 4 divisors (see below), whose sum is σ = 3007256. Its totient is φ = 1503624.

The previous prime is 2255437. The next prime is 2255447. The reversal of 2255439 is 9345522.

2255439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2255439 - 2¹ = 2255437 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 375904 + ... + 375909.

It is an arithmetic number, because the mean of its divisors is an integer number (751814).

2^2255439 is an apocalyptic number.

2255439 is a deficient number, since it is larger than the sum of its proper divisors (751817).

2255439 is an equidigital number, since it uses as much as digits as its factorization.

2255439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751816.

The product of its digits is 10800, while the sum is 30.

The square root of 2255439 is about 1501.8119056660. The cubic root of 2255439 is about 131.1425715039.

The spelling of 2255439 in words is "two million, two hundred fifty-five thousand, four hundred thirty-nine".