825166 has 16 divisors (see below), whose sum is σ = 1315440. Its totient is φ = 387520.

The previous prime is 825161. The next prime is 825191. The reversal of 825166 is 661528.

It is a super-3 number, since 3×825166³ = 1685563933367022888, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825161) 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 7 ways as a sum of consecutive naturals, for example, 2205 + ... + 2551.

It is an arithmetic number, because the mean of its divisors is an integer number (82215).

2⁸²⁵¹⁶⁶ is an apocalyptic number.

825166 is a deficient number, since it is larger than the sum of its proper divisors (490274).

825166 is a wasteful number, since it uses less digits than its factorization.

825166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its digits is 2880, while the sum is 28.

The square root of 825166 is about 908.3864816255. The cubic root of 825166 is about 93.7951628325.

The spelling of 825166 in words is "eight hundred twenty-five thousand, one hundred sixty-six".