125541926500 has 48 divisors (see below), whose sum is σ = 276610095216. Its totient is φ = 49772352000.

The previous prime is 125541926459. The next prime is 125541926501. The reversal of 125541926500 is 5629145521.

It can be written as a sum of positive squares in 8 ways, for example, as 62977910116 + 62564016384 = 250954^2 + 250128^2 .

It is not an unprimeable number, because it can be changed into a prime (125541926501) 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 15 ways as a sum of consecutive naturals, for example, 1054491 + ... + 1167490.

It is an arithmetic number, because the mean of its divisors is an integer number (5762710317).

Almost surely, 2^125541926500 is an apocalyptic number.

125541926500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125541926500 is an abundant number, since it is smaller than the sum of its proper divisors (151068168716).

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

125541926500 is a wasteful number, since it uses less digits than its factorization.

125541926500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222113 (or 2222101 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 125541926500 in words is "one hundred twenty-five billion, five hundred forty-one million, nine hundred twenty-six thousand, five hundred".