Apart from the miraculous characteristics of the Qur'an which we have looked into so far, it also contains what we can term "mathematical miracles." There are many examples of this fascinating Qur'anic aspect. One example of this is the number of repetitions of certain words in the Qur'an. Some related words are surprisingly repeated the same number of times. Below is a list of such words and the number of repetitions in the Qur'an.
• The statement of "seven heavens" is repeated seven times. "The creation of the heavens (khalq as-samawat)" is also repeated seven times.
• "Day (yawm)" is repeated 365 times in singular form, while its plural and dual forms "days (ayyam and yawmayn)" together are repeated 30 times. The number of repetitions of the word "month" (shahar) is 12.
• The number of repetitions of the words "plant" and "tree" is the same: 26
• The number of times the words, "world" (dunya) and "hereafter" (akhira) are repeated is also the same: 115
• The word "satan" (shaitan) is used in the Qur'an 88 times, as is the word "angels" (malaika).
• he word faith (iman) (without genitive) is repeated 25 times throughout the Qur'an as is also the word infidelity (kufr).
• The number of times the words "Summer-hot" and "winter-cold" are repeated is the same: 5.
• The words "man" and "woman" are also employed equally: 23 times.