56

• Olfactory receptors, in humans, are categorized in 56 families.
• The word "Yeah" is sung 56 times in both R.E.M.'s song "Man on the Moon" and Nirvana's, "Lithium".
• Fifty-six is also the number of consecutive games where Joe DiMaggio had a base hit in 1941.
• Fifty-six also represents the number of men who signed the United States Declaration of Independence.
  
• It is also the code for international direct dial phone calls to Chile.
• Fifty-six is atomic number for barium.
• And... fifty-six is the number of days in which I'll be back in the U.S.