It's about one-seven-hundred-fifty-thousandth the number of Chickens in the World.
In other words, the count of Chickens in the World is 770,000 times 25,000.(a.k.a. fowl) (Gallus gallus domesticus) (2011 figures) (average population)
The most numerous domesticated animals in the world, the estimated average population of chickens worldwide is 19 billion animals. Of these, about 6.4 billion birds produce the world's supply of chicken eggs.
It's about 0.00000009 times the number of Emails Sent per Day.
In other words, 25,000 is 0.0000000850 times the count of Emails Sent per Day, and the count of Emails Sent per Day is 11,800,000 times that amount.(2010 figures) (estimated averages)