2255745636 has 72 divisors (see below), whose sum is σ = 5833586304. Its totient is φ = 734623680.

The previous prime is 2255745619. The next prime is 2255745707. The reversal of 2255745636 is 6365475522.

2255745636 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 7 + 4 + 5 + 636 = 666.

2255745636 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2255745591 and 2255745600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1642246 + ... + 1643618.

It is an arithmetic number, because the mean of its divisors is an integer number (81022032).

Almost surely, 2^2255745636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255745636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2916793152).

2255745636 is an abundant number, since it is smaller than the sum of its proper divisors (3577840668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2255745636 is a wasteful number, since it uses less digits than its factorization.

2255745636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401 (or 2396 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 45.

The square root of 2255745636 is about 47494.6906085301. The cubic root of 2255745636 is about 1311.4851435453.

The spelling of 2255745636 in words is "two billion, two hundred fifty-five million, seven hundred forty-five thousand, six hundred thirty-six".