Podbean allows users to edit the permalink of each podcast post. This way you can customize your episode url to make it more SEO and user-friendly for linking. To customize your episode permalink, go to the episode post editor (either "Publish"-->“Episodes" to create a new post or click the pencil icon of an already published/drafted post). Then click the "More options" button at the bottom of the edit box.
You'll see more options below the edit box where you can then edit the permalink as you like. Please note that only alphanumeric characters or dash and underline are allowed.