125648540500 has 96 divisors (see below), whose sum is σ = 322095271680. Its totient is φ = 41915145600.

The previous prime is 125648540477. The next prime is 125648540503. The reversal of 125648540500 is 5045846521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125648540503) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 355630 + ... + 614629.

It is an arithmetic number, because the mean of its divisors is an integer number (3355159080).

Almost surely, 2^125648540500 is an apocalyptic number.

125648540500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125648540500 is an abundant number, since it is smaller than the sum of its proper divisors (196446731180).

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

125648540500 is a wasteful number, since it uses less digits than its factorization.

125648540500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970322 (or 970310 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 125648540500 in words is "one hundred twenty-five billion, six hundred forty-eight million, five hundred forty thousand, five hundred".