In Jewish contexts, it's called Gematria. Otherwise, it's called numerology.
The proper term for the study of numbers is numerology.
Mathematics
Tyrant
The Greek root word for the study of numbers is "arithmos," which means "number." This root is the basis for terms like "arithmetic," the branch of mathematics dealing with numbers and their operations. Another relevant Greek root is "mathema," which means "knowledge" or "science," forming the basis of the word "mathematics," encompassing the study of numbers, quantities, and shapes.
The word meaning "an abstract study of numbers" is spelt mathematics.
The study of numbers is known as Numerology.
the study of a number is numeral
the present prticiple of the word study is studying
The study of word development is 'etymology'.
The Latin word for "to study" is "Studio".
a word study is a form of words that you learned
Another word for study group is "learning circle" or "study session".