This number is a prime.
This prime can be expressed as the sum of squares of five consecutive primes: 5^2 + 7^2 + 11^2 + 13^2 + 17^2. [Patterson]
The first 3-digit prime number to occur in the decimal expansion of π.
MGMT 653 is a program designed to integrate years of advanced study by Wharton MBA students, as they apply what they have learned to the problems of organizations in the community. [Roberts]
"I was up at six fifty-three every morning to exercise." From MATH WARRIORS: Season 1, Episode 1 - "Prime-mates".