2255871 has 4 divisors (see below), whose sum is σ = 3007832. Its totient is φ = 1503912.

The previous prime is 2255867. The next prime is 2255887. The reversal of 2255871 is 1785522.

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

It is not a de Polignac number, because 2255871 - 2² = 2255867 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375976 + ... + 375981.

It is an arithmetic number, because the mean of its divisors is an integer number (751958).

2^2255871 is an apocalyptic number.

2255871 is a deficient number, since it is larger than the sum of its proper divisors (751961).

2255871 is an equidigital number, since it uses as much as digits as its factorization.

2255871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751960.

The product of its digits is 5600, while the sum is 30.

The square root of 2255871 is about 1501.9557250465. The cubic root of 2255871 is about 131.1509438539.

The spelling of 2255871 in words is "two million, two hundred fifty-five thousand, eight hundred seventy-one".