וַיִּהְי֥וּ פְקֻדֵיהֶ֖ם לְמִשְׁפְּחֹתָ֑ם אַלְפַּ֕יִם שְׁבַ֥ע מֵא֖וֹת וַחֲמִשִּֽׁים׃
And those that were numbered of them by their families were two thousand seven hundred and fifty.
Read halakhic rulings (Jewish law) on Numbers 4:36: and classical halakhic sources.