55047171 has 8 divisors (see below), whose sum is σ = 73430784. Its totient is φ = 36680840.

The previous prime is 55047169. The next prime is 55047203. The reversal of 55047171 is 17174055.

55047171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55047171 - 2¹ = 55047169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55047101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8866 + ... + 13736.

It is an arithmetic number, because the mean of its divisors is an integer number (9178848).

Almost surely, 2^55047171 is an apocalyptic number.

55047171 is a deficient number, since it is larger than the sum of its proper divisors (18383613).

55047171 is a wasteful number, since it uses less digits than its factorization.

55047171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8641.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 55047171 is about 7419.3780736663. The cubic root of 55047171 is about 380.4039356582.

The spelling of 55047171 in words is "fifty-five million, forty-seven thousand, one hundred seventy-one".