These are all the years of Abraham’s life that he lived, 175 years.
Genesis 25:7 (NASB)
In Hebrew, Abraham's years are listed this way: 100 years, and 70 years, and 5 years.
There are only a few people in Scripture who are listed this way. Up to now, the only people written out this way are Adam, Sarah, and Abraham. Every other time, it would have said: five and 70 years, and 100 years.
The sages say that Abraham's life showed continued refinement and blessings.