555166 has 8 divisors (see below), whose sum is σ = 839160. Its totient is φ = 275448.

The previous prime is 555143. The next prime is 555167. The reversal of 555166 is 661555.

555166 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (555167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (104895).

2⁵⁵⁵¹⁶⁶ is an apocalyptic number.

555166 is a deficient number, since it is larger than the sum of its proper divisors (283994).

555166 is a wasteful number, since it uses less digits than its factorization.

555166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138.

The product of its digits is 4500, while the sum is 28.

The square root of 555166 is about 745.0946248632. The cubic root of 555166 is about 82.1878501192.

The spelling of 555166 in words is "five hundred fifty-five thousand, one hundred sixty-six".