Adding to 1252125400 its reverse (45212521), we get a palindrome (1297337921).
It is a congruent number.
It is an unprimeable number.
Almost surely, 21252125400 is an apocalyptic number.
1252125400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1252125400 is a wasteful number, since it uses less digits than its factorization.
1252125400 is an odious number, because the sum of its binary digits is odd.
The square root of 1252125400 is about 35385.3839883079. The cubic root of 1252125400 is about 1077.8275373711.
The spelling of 1252125400 in words is "one billion, two hundred fifty-two million, one hundred twenty-five thousand, four hundred".