99750012725 has 24 divisors (see below), whose sum is σ = 140801291712. Its totient is φ = 69391308800.

The previous prime is 99750012697. The next prime is 99750012751. The reversal of 99750012725 is 52721005799.

It is a happy number.

It is not a de Polignac number, because 99750012725 - 2¹⁴ = 99749996341 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 99750012725.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7879052 + ... + 7891701.

It is an arithmetic number, because the mean of its divisors is an integer number (5866720488).

Almost surely, 2^99750012725 is an apocalyptic number.

It is an amenable number.

99750012725 is a deficient number, since it is larger than the sum of its proper divisors (41051278987).

99750012725 is a wasteful number, since it uses less digits than its factorization.

99750012725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15770797 (or 15770792 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 47.

The spelling of 99750012725 in words is "ninety-nine billion, seven hundred fifty million, twelve thousand, seven hundred twenty-five".