בֶּ֚קַע לַגֻּלְגֹּ֔לֶת מַחֲצִ֥ית הַשֶּׁ֖קֶל בְּשֶׁ֣קֶל הַקֹּ֑דֶשׁ לְכֹ֨ל הָעֹבֵ֜ר עַל־הַפְּקֻדִ֗ים מִבֶּ֨ן עֶשְׂרִ֤ים שָׁנָה֙ וָמַ֔עְלָה לְשֵׁשׁ־מֵא֥וֹת אֶ֙לֶף֙ וּשְׁלֹ֣שֶׁת אֲלָפִ֔ים וַחֲמֵ֥שׁ מֵא֖וֹת וַחֲמִשִּֽׁים׃
a beka a head, that is, half a shekel, after the shekel of the sanctuary, for every one that passed over to them that are numbered, from twenty years old and upward, for six hundred thousand and three thousand and five hundred and fifty men.
Read kabbalistic (mystical) interpretation of Exodus 38:26: and classical mystical sources.