Find the number

Logic Level 2

I choose a number between 1 - 100. Using the below hints, find the number.

The number is lesser than 50.
The number is greater than 10.
The number is near to a prime number.
That prime number is near to Median of numbers from 1 to 68
Negative of my number when converted from Fahrenheit to Celsius is the same in both.
All of my letters in English word occurs in alphabetical order.