The missing term is 57.
The sequence is a list of prime numbers, with each number being 2 more than the previous number.
1 is the first prime number. 5 is 2 more than 1. 13 is 2 more than 5. 25 is 2 more than 13. 41 is 2 more than 25. 57 is 2 more than 41.
Therefore, the missing term is 57.