8255785005 has 32 divisors (see below), whose sum is σ = 15805950720. Its totient is φ = 4064385600.

The previous prime is 8255785003. The next prime is 8255785033. The reversal of 8255785005 is 5005875528.

8255785005 is a `hidden beast` number, since 8 + 25 + 578 + 50 + 0 + 5 = 666.

It is not a de Polignac number, because 8255785005 - 2¹ = 8255785003 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8255785003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2350321 + ... + 2353830.

It is an arithmetic number, because the mean of its divisors is an integer number (493935960).

Almost surely, 2^8255785005 is an apocalyptic number.

It is an amenable number.

8255785005 is a deficient number, since it is larger than the sum of its proper divisors (7550165715).

8255785005 is a wasteful number, since it uses less digits than its factorization.

8255785005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704178 (or 4704172 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 45.

The square root of 8255785005 is about 90861.3504467108. The cubic root of 8255785005 is about 2021.0921947838.

The spelling of 8255785005 in words is "eight billion, two hundred fifty-five million, seven hundred eighty-five thousand, five".