50 Student Dojo: Too Large?

I am going to be starting a new dojo next week closer to my area, (I recently moved), and I found out that it has about 50 students with around 13 of them being blackbelts. Do you think that this is too large? Are your dojos that you attend this size?

well mine has 78 students but about 30 of them are children and we only have 5 blackbelts out of the 78. its posible to make it work but you will need some help.