2256866041 has 2 divisors, whose sum is σ = 2256866042. Its totient is φ = 2256866040.

The previous prime is 2256866039. The next prime is 2256866057. The reversal of 2256866041 is 1406686522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2246760000 + 10106041 = 47400^2 + 3179^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256866041 - 2¹ = 2256866039 is a prime.

Together with 2256866039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2256865985 and 2256866003.

It is not a weakly prime, because it can be changed into another prime (2256866021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128433020 + 1128433021.

It is an arithmetic number, because the mean of its divisors is an integer number (1128433021).

Almost surely, 2^2256866041 is an apocalyptic number.

It is an amenable number.

2256866041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256866041 is an equidigital number, since it uses as much as digits as its factorization.

2256866041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 2256866041 is about 47506.4841995280. The cubic root of 2256866041 is about 1311.7022412060.

The spelling of 2256866041 in words is "two billion, two hundred fifty-six million, eight hundred sixty-six thousand, forty-one".