556165 has 8 divisors (see below), whose sum is σ = 683928. Its totient is φ = 433920.

The previous prime is 556159. The next prime is 556177. The reversal of 556165 is 561655.

It can be written as a sum of positive squares in 4 ways, for example, as 74529 + 481636 = 273^2 + 694^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556165 - 2⁷ = 556037 is a prime.

It is a Duffinian number.

556165 is a lucky number.

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, 1152 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (85491).

2⁵⁵⁶¹⁶⁵ is an apocalyptic number.

It is an amenable number.

556165 is a deficient number, since it is larger than the sum of its proper divisors (127763).

556165 is a wasteful number, since it uses less digits than its factorization.

556165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759.

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

The square root of 556165 is about 745.7647082023. The cubic root of 556165 is about 82.2371185439.

The spelling of 556165 in words is "five hundred fifty-six thousand, one hundred sixty-five".