2256170223 has 8 divisors (see below), whose sum is σ = 3013980928. Its totient is φ = 1501236504.

The previous prime is 2256170209. The next prime is 2256170233. The reversal of 2256170223 is 3220716522.

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

It is not a de Polignac number, because 2256170223 - 2²⁶ = 2189061359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256170233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717415 + ... + 720552.

It is an arithmetic number, because the mean of its divisors is an integer number (376747616).

Almost surely, 2^2256170223 is an apocalyptic number.

2256170223 is a deficient number, since it is larger than the sum of its proper divisors (757810705).

2256170223 is a wasteful number, since it uses less digits than its factorization.

2256170223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438493.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2256170223 is about 47499.1602346820. The cubic root of 2256170223 is about 1311.5674230069.

Adding to 2256170223 its reverse (3220716522), we get a palindrome (5476886745).

The spelling of 2256170223 in words is "two billion, two hundred fifty-six million, one hundred seventy thousand, two hundred twenty-three".