2256849217 has 8 divisors (see below), whose sum is σ = 2691398016. Its totient is φ = 1850335872.

The previous prime is 2256849193. The next prime is 2256849289. The reversal of 2256849217 is 7129486522.

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

It is not a de Polignac number, because 2256849217 - 2¹⁹ = 2256324929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256849017) 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 7 ways as a sum of consecutive naturals, for example, 7008688 + ... + 7009009.

It is an arithmetic number, because the mean of its divisors is an integer number (336424752).

Almost surely, 2^2256849217 is an apocalyptic number.

It is an amenable number.

2256849217 is a deficient number, since it is larger than the sum of its proper divisors (434548799).

2256849217 is a wasteful number, since it uses less digits than its factorization.

2256849217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14017727.

The product of its digits is 483840, while the sum is 46.

The square root of 2256849217 is about 47506.3071286329. The cubic root of 2256849217 is about 1311.6989817992.

The spelling of 2256849217 in words is "two billion, two hundred fifty-six million, eight hundred forty-nine thousand, two hundred seventeen".