225613344647 has 4 divisors (see below), whose sum is σ = 225634918080. Its totient is φ = 225591771216.

The previous prime is 225613344643. The next prime is 225613344673. The reversal of 225613344647 is 746443316522.

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

It is a cyclic number.

It is not a de Polignac number, because 225613344647 - 2² = 225613344643 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 (225613344641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10771022 + ... + 10791947.

It is an arithmetic number, because the mean of its divisors is an integer number (56408729520).

Almost surely, 2^225613344647 is an apocalyptic number.

225613344647 is a deficient number, since it is larger than the sum of its proper divisors (21573433).

225613344647 is a wasteful number, since it uses less digits than its factorization.

225613344647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21573432.

The product of its digits is 2903040, while the sum is 47.

The spelling of 225613344647 in words is "two hundred twenty-five billion, six hundred thirteen million, three hundred forty-four thousand, six hundred forty-seven".