2256475171 has 4 divisors (see below), whose sum is σ = 2277563832. Its totient is φ = 2235386512.

The previous prime is 2256475153. The next prime is 2256475189. The reversal of 2256475171 is 1715746522.

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

It is an interprime number because it is at equal distance from previous prime (2256475153) and next prime (2256475189).

It is a cyclic number.

It is not a de Polignac number, because 2256475171 - 2⁷ = 2256475043 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256475271) 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, 10544170 + ... + 10544383.

It is an arithmetic number, because the mean of its divisors is an integer number (569390958).

Almost surely, 2^2256475171 is an apocalyptic number.

2256475171 is a deficient number, since it is larger than the sum of its proper divisors (21088661).

2256475171 is a wasteful number, since it uses less digits than its factorization.

2256475171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21088660.

The product of its digits is 117600, while the sum is 40.

The square root of 2256475171 is about 47502.3701619193. The cubic root of 2256475171 is about 1311.6265116106.

The spelling of 2256475171 in words is "two billion, two hundred fifty-six million, four hundred seventy-five thousand, one hundred seventy-one".