9909307025 has 12 divisors (see below), whose sum is σ = 12934254000. Its totient is φ = 7510211280.

The previous prime is 9909306961. The next prime is 9909307027. The reversal of 9909307025 is 5207039099.

It is not a de Polignac number, because 9909307025 - 2⁶ = 9909306961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9909307027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10430375 + ... + 10431324.

It is an arithmetic number, because the mean of its divisors is an integer number (1077854500).

Almost surely, 2^9909307025 is an apocalyptic number.

9909307025 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9909307025 is a deficient number, since it is larger than the sum of its proper divisors (3024946975).

9909307025 is a wasteful number, since it uses less digits than its factorization.

9909307025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20861728 (or 20861723 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 9909307025 is about 99545.5022841314. The cubic root of 9909307025 is about 2147.9018308500.

The spelling of 9909307025 in words is "nine billion, nine hundred nine million, three hundred seven thousand, twenty-five".