2055171 has 4 divisors (see below), whose sum is σ = 2740232. Its totient is φ = 1370112.

The previous prime is 2055133. The next prime is 2055187. The reversal of 2055171 is 1715502.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2055171 - 2⁶ = 2055107 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342526 + ... + 342531.

It is an arithmetic number, because the mean of its divisors is an integer number (685058).

2^2055171 is an apocalyptic number.

2055171 is a deficient number, since it is larger than the sum of its proper divisors (685061).

2055171 is an equidigital number, since it uses as much as digits as its factorization.

2055171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685060.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 2055171 is about 1433.5867605415. The cubic root of 2055171 is about 127.1401309375.

The spelling of 2055171 in words is "two million, fifty-five thousand, one hundred seventy-one".