Exodus 38:26
"A bekah for every man, that is, half a shekel, after the shekel of the sanctuary, for every one that went to be numbered, from twenty years old and upward, for six hundred thousand and three thousand and five hundred and fifty men."
Cross References (ranked by relevance)
Numbers 1:46
Even all they that were numbered were six hundred thousand and three thousand and five hundred and fifty.
Exodus 30:13
This they shall give, every one that passeth among them that are numbered, half a shekel after the shekel of the sanctuary: (a shekel is twenty gerahs:) an half shekel shall be the offering of the LORD.
Exodus 12:37
And the children of Israel journeyed from Rameses to Succoth, about six hundred thousand on foot that were men, beside children.