55643827225 has 12 divisors (see below), whose sum is σ = 78855252544. Its totient is φ = 38155767120.

The previous prime is 55643827193. The next prime is 55643827237. The reversal of 55643827225 is 52272834655.

It is not a de Polignac number, because 55643827225 - 2⁵ = 55643827193 is a prime.

It is a Duffinian 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 in 11 ways as a sum of consecutive naturals, for example, 158982189 + ... + 158982538.

Almost surely, 2^55643827225 is an apocalyptic number.

It is an amenable number.

55643827225 is a deficient number, since it is larger than the sum of its proper divisors (23211425319).

55643827225 is a wasteful number, since it uses less digits than its factorization.

55643827225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317964744 (or 317964739 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 49.

The spelling of 55643827225 in words is "fifty-five billion, six hundred forty-three million, eight hundred twenty-seven thousand, two hundred twenty-five".