171885055 has 8 divisors (see below), whose sum is σ = 207188352. Its totient is φ = 136890528.

The previous prime is 171885047. The next prime is 171885097. The reversal of 171885055 is 550588171.

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 171885055 - 2³ = 171885047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171884999 and 171885017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75964 + ... + 78193.

It is an arithmetic number, because the mean of its divisors is an integer number (25898544).

Almost surely, 2^171885055 is an apocalyptic number.

171885055 is a deficient number, since it is larger than the sum of its proper divisors (35303297).

171885055 is a wasteful number, since it uses less digits than its factorization.

171885055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154385.

The product of its (nonzero) digits is 56000, while the sum is 40.

The square root of 171885055 is about 13110.4940791718. The cubic root of 171885055 is about 556.0058646708.

The spelling of 171885055 in words is "one hundred seventy-one million, eight hundred eighty-five thousand, fifty-five".