125113637500 has 36 divisors (see below), whose sum is σ = 273668593464. Its totient is φ = 50045450000.

The previous prime is 125113637449. The next prime is 125113637501. The reversal of 125113637500 is 5736311521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125113637501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4992046 + ... + 5017045.

It is an arithmetic number, because the mean of its divisors is an integer number (7601905374).

Almost surely, 2^125113637500 is an apocalyptic number.

125113637500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125113637500 is an abundant number, since it is smaller than the sum of its proper divisors (148554955964).

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

125113637500 is an equidigital number, since it uses as much as digits as its factorization.

125113637500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10009120 (or 10009098 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 125113637500 in words is "one hundred twenty-five billion, one hundred thirteen million, six hundred thirty-seven thousand, five hundred".