125440535500 has 192 divisors, whose sum is σ = 320597012736. Its totient is φ = 41990400000.

The previous prime is 125440535449. The next prime is 125440535513. The reversal of 125440535500 is 5535044521.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25803070 + ... + 25807930.

It is an arithmetic number, because the mean of its divisors is an integer number (1669776108).

Almost surely, 2^125440535500 is an apocalyptic number.

125440535500 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 125440535500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160298506368).

125440535500 is an abundant number, since it is smaller than the sum of its proper divisors (195156477236).

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

125440535500 is a wasteful number, since it uses less digits than its factorization.

125440535500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061 (or 5049 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 125440535500 in words is "one hundred twenty-five billion, four hundred forty million, five hundred thirty-five thousand, five hundred".