125205305500 has 48 divisors (see below), whose sum is σ = 298307344608. Its totient is φ = 45529200000.

The previous prime is 125205305479. The next prime is 125205305527. The reversal of 125205305500 is 5503502521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11376801 + ... + 11387800.

It is an arithmetic number, because the mean of its divisors is an integer number (6214736346).

Almost surely, 2^125205305500 is an apocalyptic number.

125205305500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125205305500 is an abundant number, since it is smaller than the sum of its proper divisors (173102039108).

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

125205305500 is a wasteful number, since it uses less digits than its factorization.

125205305500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22764631 (or 22764619 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 125205305500 in words is "one hundred twenty-five billion, two hundred five million, three hundred five thousand, five hundred".