9120558825 has 192 divisors, whose sum is σ = 20067287040. Its totient is φ = 3973536000.

The previous prime is 9120558779. The next prime is 9120558877. The reversal of 9120558825 is 5288550219.

It is a happy number.

9120558825 is a `hidden beast` number, since 9 + 12 + 0 + 558 + 82 + 5 = 666.

It is not a de Polignac number, because 9120558825 - 2⁷ = 9120558697 is a prime.

It is a super-3 number, since 3×9120558825³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10399287 + ... + 10400163.

It is an arithmetic number, because the mean of its divisors is an integer number (104517120).

Almost surely, 2^9120558825 is an apocalyptic number.

It is an amenable number.

9120558825 is an abundant number, since it is smaller than the sum of its proper divisors (10946728215).

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

9120558825 is a wasteful number, since it uses less digits than its factorization.

9120558825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 9120558825 is about 95501.6168711295. The cubic root of 9120558825 is about 2089.3305262484.

The spelling of 9120558825 in words is "nine billion, one hundred twenty million, five hundred fifty-eight thousand, eight hundred twenty-five".