9925558545 has 32 divisors (see below), whose sum is σ = 19217219328. Its totient is φ = 4270491648.

The previous prime is 9925558507. The next prime is 9925558547. The reversal of 9925558545 is 5458555299.

It is not a de Polignac number, because 9925558545 - 2¹¹ = 9925556497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9925558547) 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 31 ways as a sum of consecutive naturals, for example, 2778484 + ... + 2782053.

It is an arithmetic number, because the mean of its divisors is an integer number (600538104).

Almost surely, 2^9925558545 is an apocalyptic number.

It is an amenable number.

9925558545 is a deficient number, since it is larger than the sum of its proper divisors (9291660783).

9925558545 is a wasteful number, since it uses less digits than its factorization.

9925558545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560569.

The product of its digits is 16200000, while the sum is 57.

The square root of 9925558545 is about 99627.0974434165. The cubic root of 9925558545 is about 2149.0753943908.

The spelling of 9925558545 in words is "nine billion, nine hundred twenty-five million, five hundred fifty-eight thousand, five hundred forty-five".