2255813678 has 4 divisors (see below), whose sum is σ = 3383720520. Its totient is φ = 1127906838.

The previous prime is 2255813647. The next prime is 2255813683. The reversal of 2255813678 is 8763185522.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563953418 + ... + 563953421.

It is an arithmetic number, because the mean of its divisors is an integer number (845930130).

Almost surely, 2^2255813678 is an apocalyptic number.

2255813678 is a deficient number, since it is larger than the sum of its proper divisors (1127906842).

2255813678 is a wasteful number, since it uses less digits than its factorization.

2255813678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127906841.

The product of its digits is 806400, while the sum is 47.

The square root of 2255813678 is about 47495.4069147744. The cubic root of 2255813678 is about 1311.4983298984.

The spelling of 2255813678 in words is "two billion, two hundred fifty-five million, eight hundred thirteen thousand, six hundred seventy-eight".