odd, composite · 825th positive integer
The number 825
825 is an odd composite number. It is the 825th positive integer.
Quick reference
| Prime factorization | 3 × 5 × 5 × 11 |
| Divisors | 1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825 |
| Binary | 1100111001 |
| Hexadecimal | 0x339 |
| Roman numeral | DCCCXXV |
| Digit sum | 15 |
| Properties | odd, composite |
Reading 825 in NumGrid context
The 825 record above pulls directly from classical number theory plus NumGrid solver-derived puzzle statistics. What follows is the per-entity context — how 825 sits in the broader integer properties and number-guessing puzzles distribution and which underlying factors drive the headline numbers.
Every number on this page links back to classical number theory plus NumGrid solver-derived puzzle statistics; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for 825’s peers within positive integers within the NumGrid target pool. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Frequently asked
Is 825 a prime number?
No. 825 is composite. Its prime factorization is 3 × 5 × 5 × 11.
What are the factors of 825?
The factors (divisors) of 825 are 1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825.
What is 825 in binary?
825 in binary is 1100111001. In hexadecimal it's 339.
What is 825 as a Roman numeral?
825 in Roman numerals is DCCCXXV.
What's the digit sum of 825?
Adding the digits of 825: 8 + 2 + 5 = 15.