556173 has 8 divisors (see below), whose sum is σ = 824000. Its totient is φ = 370764.

The previous prime is 556159. The next prime is 556177. The reversal of 556173 is 371655.

556173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 556173 - 2⁹ = 555661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 20599 = 556173 / (5 + 5 + 6 + 1 + 7 + 3).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10273 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (103000).

2⁵⁵⁶¹⁷³ is an apocalyptic number.

It is an amenable number.

556173 is a deficient number, since it is larger than the sum of its proper divisors (267827).

556173 is a wasteful number, since it uses less digits than its factorization.

556173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20608 (or 20602 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 556173 is about 745.7700718050. The cubic root of 556173 is about 82.2375128476.

It can be divided in two parts, 556 and 173, that added together give a 6-th power (729 = 3⁶).

The spelling of 556173 in words is "five hundred fifty-six thousand, one hundred seventy-three".