Fifty-three is the 16th prime number. It is also an Eisenstein prime, and a Sophie Germain prime.
The sum of the first 53 primes is 5830, which is divisible by 53, a property shared by few other numbers.
53 written in hexadecimal is 35, that is, the same characters used in the decimal representation, but reversed. Four additional multiples of 53 share this property: 371 = 17316, 5141 = 141516, 99481 = 1849916, and 8520280 = 082025816. Apart from the trivial case of single-digit decimals, no other number has this property.
53 cannot be expressed as the sum of any integer and its base-10 digits, making 53 a self number.
53 is the smallest prime number that does not divide the order of any sporadic group.
I have no idea what any of that means… so let’s try something else…
The racing number of Herbie, a fictional Volkswagen Beetle with a mind of his own, first appearing in the 1968 film The Love Bug
The code for international direct dial phone calls to Cuba
In How the Grinch Stole Christmas!, and its animated TV special the Grinch says he’s put up with the Whos’ Christmas cheer for 53 years.
Fictional 53rd Precinct in the Bronx was found in the TV comedy “Car 54, Where Are You?”
53 More Things To Do In Zero Gravity is a book mentioned in The Hitchhiker’s Guide to the Galaxy
The maximum number of players on a National Football League roster.
More my speed. The most important thing is today, July 1, is our 53rd wedding anniversary.
Old Bill Shakespeare said it well: ‘To me, fair friend, you never can be old, For as you were when first your eye I eyed, Such seems your beauty still. ‘
Betty, in my eyes you are now as you were when I first laid eyes upon you in Mr. Gregory’s chemistry class. Your beauty today is deeper and more beautiful than it was when I first saw you.