55000000171 has 2 divisors, whose sum is σ = 55000000172. Its totient is φ = 55000000170.

The previous prime is 55000000163. The next prime is 55000000201. The reversal of 55000000171 is 17100000055.

55000000171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55000000171 - 2³ = 55000000163 is a prime.

It is not a weakly prime, because it can be changed into another prime (55000000271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500000085 + 27500000086.

It is an arithmetic number, because the mean of its divisors is an integer number (27500000086).

Almost surely, 2^55000000171 is an apocalyptic number.

55000000171 is a deficient number, since it is larger than the sum of its proper divisors (1).

55000000171 is an equidigital number, since it uses as much as digits as its factorization.

55000000171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 175, while the sum is 19.

The spelling of 55000000171 in words is "fifty-five billion, one hundred seventy-one", and thus it is an aban number.