2255644563 has 16 divisors (see below), whose sum is σ = 3114871200. Its totient is φ = 1450211840.

The previous prime is 2255644553. The next prime is 2255644607. The reversal of 2255644563 is 3654465522.

2255644563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2255644563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2255644553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61933 + ... + 91361.

It is an arithmetic number, because the mean of its divisors is an integer number (194679450).

Almost surely, 2^2255644563 is an apocalyptic number.

2255644563 is a deficient number, since it is larger than the sum of its proper divisors (859226637).

2255644563 is a wasteful number, since it uses less digits than its factorization.

2255644563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30342.

The product of its digits is 864000, while the sum is 42.

The square root of 2255644563 is about 47493.6265513595. The cubic root of 2255644563 is about 1311.4655553856.

The spelling of 2255644563 in words is "two billion, two hundred fifty-five million, six hundred forty-four thousand, five hundred sixty-three".