125138757500 has 30 divisors (see below), whose sum is σ = 273653440368. Its totient is φ = 50055502000.

The previous prime is 125138757463. The next prime is 125138757533. The reversal of 125138757500 is 5757831521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25025252 + ... + 25030251.

Almost surely, 2^125138757500 is an apocalyptic number.

125138757500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125138757500 is an abundant number, since it is smaller than the sum of its proper divisors (148514682868).

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

125138757500 is an equidigital number, since it uses as much as digits as its factorization.

125138757500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50055527 (or 50055510 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 125138757500 in words is "one hundred twenty-five billion, one hundred thirty-eight million, seven hundred fifty-seven thousand, five hundred".