172055 has 8 divisors (see below), whose sum is σ = 222432. Its totient is φ = 127008.

The previous prime is 172049. The next prime is 172069. The reversal of 172055 is 550271.

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 172055 - 2⁸ = 171799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (27804).

2¹⁷²⁰⁵⁵ is an apocalyptic number.

172055 is a deficient number, since it is larger than the sum of its proper divisors (50377).

172055 is a wasteful number, since it uses less digits than its factorization.

172055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 172055 is about 414.7951301546. The cubic root of 172055 is about 55.6189047734.

The spelling of 172055 in words is "one hundred seventy-two thousand, fifty-five".