Agree completely with Buffy's answer: it depends on the conventions of your field and the content of your paper. For example, 57 references might even be too few for a review paper. But regardless of the domain, I doubt having too many references would be too much of a problem.
The part that jumps out at me, though, is that you have 70 footnotes. In some old-fashioned papers, footnotes are used for citations (i.e., you will add a footnote saying "Jones 30" and then the bibliography provides a full citation for Jones's work). In this case, 70 footnotes might be okay. But it sounds like you are not doing this; rather, you have an enormous amount of footnotes which are making parenthetical comments and providing additional content.
Again, it is hard to judge in a vacuum; it might be that adding all these footnotes was a judicious way to present very complicated information. For example, I could imagine a linguistics paper where you use footnotes to provide translations or etymologies without disrupting the narrative. But, I think you should really reflect on whether using so many footnotes was the optimal choice for your paper. In particular, if you are expecting your reader to spend 18 pages bouncing between the main text and the footnotes, it is likely that your paper could benefit from being reorganized.