2256249 has 4 divisors (see below), whose sum is σ = 3008336. Its totient is φ = 1504164.

The previous prime is 2256227. The next prime is 2256251. The reversal of 2256249 is 9426522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2256249 - 2⁵ = 2256217 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2256259) 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, 376039 + ... + 376044.

It is an arithmetic number, because the mean of its divisors is an integer number (752084).

2^2256249 is an apocalyptic number.

It is an amenable number.

2256249 is a deficient number, since it is larger than the sum of its proper divisors (752087).

2256249 is an equidigital number, since it uses as much as digits as its factorization.

2256249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752086.

The product of its digits is 8640, while the sum is 30.

The square root of 2256249 is about 1502.0815557086. The cubic root of 2256249 is about 131.1582687834.

The spelling of 2256249 in words is "two million, two hundred fifty-six thousand, two hundred forty-nine".