Yes, 25 MAXUV are equivalent to 25 SP.
An upvote from 25 SP is worth about $0.0001.
The total votes from all MAXUV voters you received is $0.0026 - about 25x more than mere SP.
A 1 mil SP vote scaled down to your 25 SP would be $0.0003.
In this case, you got a lot more than this.

Also note that the @maxuv account is not a regular voter, but holds the tokens and publishes posts, so those votes are more bonuses.

Because of the nature of the new non-linear reward curve, these numbers will change with every post, but the votes received will be much higher than the SP-equivalent held in tokens.