Write SQL query to solve given problem: For the device with an event occurring on 2016/5/1 at 0:55:25, what is the gender of its user?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.gender FROM gender_age AS T1 INNER JOIN events AS T2 ON T1.device_id = T2.device_id WHERE T2.timestamp = '2016-05-01 00:55:25'