125542620500 has 96 divisors (see below), whose sum is σ = 300171650688. Its totient is φ = 45489984000.

The previous prime is 125542620499. The next prime is 125542620523. The reversal of 125542620500 is 5026245521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1516172 + ... + 1596828.

It is an arithmetic number, because the mean of its divisors is an integer number (3126788028).

Almost surely, 2^125542620500 is an apocalyptic number.

125542620500 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 125542620500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150085825344).

125542620500 is an abundant number, since it is smaller than the sum of its proper divisors (174629030188).

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

125542620500 is a wasteful number, since it uses less digits than its factorization.

125542620500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80970 (or 80958 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 125542620500 in words is "one hundred twenty-five billion, five hundred forty-two million, six hundred twenty thousand, five hundred".