The document discusses various properties of the number 51. It shows that 51 is an odd number, has 4 factors of 1, 3, 17, 51, and is deficient because its factors sum to less than 51. It also shows that 51 squared is equal to 2,601, and that the prime factorization of 51 is 3 * 17. It provides two fun facts: that 51 years and 51 days ago was when ABC first broadcast, and that baseball player Ichiro Suzuki wears the number 51.