Il numero romano MMMMCXXV nel sistema decimale vale: 4125.
MMMMCXXV in latino si scrive quattuor milia centum viginti quinque,
mentre in italiano quattromilacentoventicinque.
MMMMCVI, MMMMCVII, MMMMCVIII, MMMMCIX, MMMMCX, MMMMCXI, MMMMCXII, MMMMCXIII, MMMMCXIV, MMMMCXV, MMMMCXVI, MMMMCXVII, MMMMCXVIII, MMMMCXIX, MMMMCXX, MMMMCXXI, MMMMCXXII, MMMMCXXIII, MMMMCXXIV, MMMMCXXVI, MMMMCXXVII, MMMMCXXVIII, MMMMCXXIX, MMMMCXXX, MMMMCXXXI, MMMMCXXXII, MMMMCXXXIII, MMMMCXXXIV, MMMMCXXXV, MMMMCXXXVI, MMMMCXXXVII, MMMMCXXXVIII, MMMMCXXXIX, MMMMCXL, MMMMCXLI, MMMMCXLII, MMMMCXLIII, MMMMCXLIV