It is a congruent number.
It is an unprimeable number.
Almost surely, 2125225020 is an apocalyptic number.
125225020 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 practical number, because each smaller number is the sum of distinct divisors of 125225020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135883440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
125225020 is a wasteful number, since it uses less digits than its factorization.
125225020 is an odious number, because the sum of its binary digits is odd.
The square root of 125225020 is about 11190.3985630540. The cubic root of 125225020 is about 500.2998468145.
Adding to 125225020 its reverse (20522521), we get a palindrome (145747541).
The spelling of 125225020 in words is "one hundred twenty-five million, two hundred twenty-five thousand, twenty".