Do divide ratios change the propagation delay?

If the divide ratio is greater than 1, the propagation delay is consistent for all divide ratios up to 32. Propagation time is measured from the 50% point of rising edge of the clock input to the 50% point on the rising edge of the output.

For a divide-by-1, the propagation delay is a little less than when a higher divide ratio is used. For the AD9510/11/12, this amounts to approximately 55 ps difference.