- The exponent of the 19th Mersenne Prime is 4253.
- Surah 42 in the Quran has 53 verses.
- 4253 is 583rd Prime Number.
- 583rd Regular Prime is 7577.
- 438th Non-Chen Prime is 7577.
- 353rd Composite is 438.
- 353 is the exponent of the 19th Gaussian Mersenne Prime.
- 353 is the frequencies of ح + م (Hha + Meem) in Surah 42.
- 438th Composite is 538.
- 538th Non-Chen Prime is 9127.
- 538 is the index of Composite 658.
- 658th Composite is 798. 798 is the frequency of كهيعص (Kaf + Ha + Ya + Ain + Sad) in Surah 19.
- 583 is a Composite and its index is 476.
- 7577 is 476th pythagorean prime.
- 476th Prime is 3373.
- Surah 33 has 73 verses.
