8005555008 has 84 divisors (see below), whose sum is σ = 25032541248. Its totient is φ = 2425923840.

The previous prime is 8005554937. The next prime is 8005555013.

8005555008 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8005555008² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625416 + ... + 638087.

Almost surely, 2^8005555008 is an apocalyptic number.

8005555008 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8005555008 is an abundant number, since it is smaller than the sum of its proper divisors (17026986240).

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

8005555008 is a wasteful number, since it uses less digits than its factorization.

8005555008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263532 (or 1263519 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The square root of 8005555008 is about 89473.7671499306. The cubic root of 8005555008 is about 2000.4628102284.

The spelling of 8005555008 in words is "eight billion, five million, five hundred fifty-five thousand, eight".