555

Not sure what you want with 555. Here are a few quick math-related angles you might find useful:

• Prime factorization: 555 = 3 × 5 × 37 = 15 × 37
• Divisibility: divisible by 3 and 5 (sum of digits is 15; ends with 5)
• Roman numeral: DLV
• Binary: 555 in binary is 1000101011
• Hexadecimal: 0x22B
• In words: five hundred fifty-five (American) / five hundred and fifty-five (British)

If you’d like, I can turn this into a couple of quick exam-style questions or help with a specific conversion (e.g., to hex or binary) or a gcd problem. Which direction would you prefer?