Il numero 251, duecentocinquantuno in Italiano, in Inglese si dice two hundred fifty-one.
Il numero ordinale 251° in inglese si dice two hundred fifty-first.
242: two hundred forty-two
243: two hundred forty-three
244: two hundred forty-four
245: two hundred forty-five
246: two hundred forty-six
247: two hundred forty-seven
248: two hundred forty-eight
249: two hundred forty-nine
250: two hundred fifty
252: two hundred fifty-two
253: two hundred fifty-three
254: two hundred fifty-four
255: two hundred fifty-five
256: two hundred fifty-six
257: two hundred fifty-seven
258: two hundred fifty-eight
259: two hundred fifty-nine
260: two hundred sixty