The number 56

56. It’s just a number, they say.

    \[1\cdot 56\]

    \[2\cdot 28\]

    \[4\cdot 14\]

    \[7\cdot 8\]

and in primes

    \[2^3\cdot 7\]

or

    \[3 + 5 + 7 + 11 + 13 + 17=56\]

Also the first six triangular numbers

    \[1+3+6+10+15+21=56\]

And as a square root

    \[\sqrt{56}=2\sqrt{14}\]

Not to mention

Barium (Z=56) picture by Matthias Zepper (wikimedia)

Let alone

Messier 56, credit: Hubble Space Telescope ESA/NASA

And as of today (230117, or 170123, both primes) it’s my age as well.