From https://en.wikipedia.org/wiki/255_(number) :

• Its factorization makes it a sphenic number.
• Since 255 = 2^8 – 1, it is a Mersenne number (though not a pernicious one), and the fourth such number not to be a prime number.
• It is a perfect totient number, the smallest such number to be neither a power of three nor thrice a prime.
• Since 255 is the product of the first three Fermat primes, the regular 255-gon is constructible.
• In base 10, it is a self number.
• 255 is a repdigit in base 2 (11111111), in base 4 (3333), and in base 16 (FF).

Here’s Q Drop #255: https://qalerts.app/?q=%23255

See you tomorrow, Frens!🤓