2255855617 has 8 divisors (see below), whose sum is σ = 2477828160. Its totient is φ = 2044207440.

The previous prime is 2255855587. The next prime is 2255855639. The reversal of 2255855617 is 7165585522.

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

It is a cyclic number.

It is not a de Polignac number, because 2255855617 - 2¹⁹ = 2255331329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2255855687) 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, 2580634 + ... + 2581507.

It is an arithmetic number, because the mean of its divisors is an integer number (309728520).

Almost surely, 2^2255855617 is an apocalyptic number.

It is an amenable number.

2255855617 is a deficient number, since it is larger than the sum of its proper divisors (221972543).

2255855617 is a wasteful number, since it uses less digits than its factorization.

2255855617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162183.

The product of its digits is 840000, while the sum is 46.

The square root of 2255855617 is about 47495.8484185723. The cubic root of 2255855617 is about 1311.5064574295.

The spelling of 2255855617 in words is "two billion, two hundred fifty-five million, eight hundred fifty-five thousand, six hundred seventeen".