825855 has 8 divisors (see below), whose sum is σ = 1321392. Its totient is φ = 440448.

The previous prime is 825829. The next prime is 825857. The reversal of 825855 is 558528.

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

It is not a de Polignac number, because 825855 - 2⁶ = 825791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825857) 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, 27514 + ... + 27543.

It is an arithmetic number, because the mean of its divisors is an integer number (165174).

2⁸²⁵⁸⁵⁵ is an apocalyptic number.

825855 is a deficient number, since it is larger than the sum of its proper divisors (495537).

825855 is a wasteful number, since it uses less digits than its factorization.

825855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55065.

The product of its digits is 16000, while the sum is 33.

The square root of 825855 is about 908.7656463577. The cubic root of 825855 is about 93.8212613745.

The spelling of 825855 in words is "eight hundred twenty-five thousand, eight hundred fifty-five".