9117975425 has 12 divisors (see below), whose sum is σ = 12176004540. Its totient is φ = 6733273920.

The previous prime is 9117975421. The next prime is 9117975467. The reversal of 9117975425 is 5245797119.

It can be written as a sum of positive squares in 6 ways, for example, as 7463824 + 9110511601 = 2732^2 + 95449^2 .

It is not a de Polignac number, because 9117975425 - 2² = 9117975421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9117975421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14027330 + ... + 14027979.

It is an arithmetic number, because the mean of its divisors is an integer number (1014667045).

Almost surely, 2^9117975425 is an apocalyptic number.

It is an amenable number.

9117975425 is a deficient number, since it is larger than the sum of its proper divisors (3058029115).

9117975425 is a wasteful number, since it uses less digits than its factorization.

9117975425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28055332 (or 28055327 counting only the distinct ones).

The product of its digits is 793800, while the sum is 50.

The square root of 9117975425 is about 95488.0904877671. The cubic root of 9117975425 is about 2089.1332398654.

The spelling of 9117975425 in words is "nine billion, one hundred seventeen million, nine hundred seventy-five thousand, four hundred twenty-five".