125512587750 has 128 divisors (see below), whose sum is σ = 342108748800. Its totient is φ = 30396192000.

The previous prime is 125512587731. The next prime is 125512587791. The reversal of 125512587750 is 57785215521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125512587750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8646999 + ... + 8661501.

It is an arithmetic number, because the mean of its divisors is an integer number (2672724600).

Almost surely, 2^125512587750 is an apocalyptic number.

125512587750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125512587750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171054374400).

125512587750 is an abundant number, since it is smaller than the sum of its proper divisors (216596161050).

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

125512587750 is a wasteful number, since it uses less digits than its factorization.

125512587750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15583 (or 15573 counting only the distinct ones).

The product of its (nonzero) digits is 980000, while the sum is 48.

The spelling of 125512587750 in words is "one hundred twenty-five billion, five hundred twelve million, five hundred eighty-seven thousand, seven hundred fifty".