It's about the number of Countries in Africa
In other words, the count of Countries in Africa is 1 times 54.(2016 figures) (sovereign states recognized by the UN only)
The continent of Africa includes 56 sovereign countries recognized by the United Nations as of 2020. It is the second-most populous continent in the world, with 1.3 billion inhabitants.List_of_sovereign_states_and_dependent_territories_in_Africa
It's about one-and-one-tenth times the number of Teeth in a Great White Shark's Mouth
In other words, the count of Teeth in a Great White Shark's Mouth is 0.910 times 54.(Carcharodon carcharias) (average; including developing rows)
A Great White Shark has 48 exposed teeth on their upper and lower jaws. Behind these exposed teeth are developing teeth — up to 300 in about 5 rows. The sharks will continuously lose and replace the exposed teeth throughout their lives.
It's about three-fourths the number of Submarines in the US Navy
It's about three-fifths the number of Keys on a Piano
In other words, 54 is 0.610 times the count of Keys on a Piano, and the count of Keys on a Piano is 1.60 times that amount.(Moden layout; A0 to C7)
It's about half the number of Wolves in Yellowstone National Park
In other words, 54 is 0.5190 times the count of Wolves in Yellowstone National Park, and the count of Wolves in Yellowstone National Park is 1.930 times that amount.(a.k.a. Henihco'oo; a.k.a. Héetíhco'oo) (December 2014 figures; Wyoming Park area)
It's about two times the number of Countries in the European Union
In other words, the count of Countries in the European Union is 0.50 times 54.(a.k.a. EU) (2016 figures)
There are 27 member countries in the European Union, the latest member of which is Croatia. The EU is largely urban, with over twenty cities having a population of one million or more, and 75% of the population living in an urban area.
It's about half the number of Elements on the Periodic Table
In other words, 54 is 0.4580 times the count of Elements on the Periodic Table, and the count of Elements on the Periodic Table is 2.180 times that amount.(a.k.a. Periodic Table of the Elements, a.k.a chemical elements) (confirmed elements as of 2016)