125263889000 has 64 divisors (see below), whose sum is σ = 293304782160. Its totient is φ = 50073542400.

The previous prime is 125263888999. The next prime is 125263889033. The reversal of 125263889000 is 988362521.

It can be written as a sum of positive squares in 8 ways, for example, as 2316881956 + 122947007044 = 48134^2 + 350638^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1557782 + ... + 1636218.

Almost surely, 2^125263889000 is an apocalyptic number.

125263889000 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 125263889000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146652391080).

125263889000 is an abundant number, since it is smaller than the sum of its proper divisors (168040893160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125263889000 is a wasteful number, since it uses less digits than its factorization.

125263889000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80055 (or 80041 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 125263889000 in words is "one hundred twenty-five billion, two hundred sixty-three million, eight hundred eighty-nine thousand".