6551006500 has 24 divisors (see below), whose sum is σ = 14307399288. Its totient is φ = 2620402400.

The previous prime is 6551006479. The next prime is 6551006503. The reversal of 6551006500 is 56001556.

It can be written as a sum of positive squares in 4 ways, for example, as 46656 + 6550959844 = 216^2 + 80938^2 .

It is not an unprimeable number, because it can be changed into a prime (6551006503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6550507 + ... + 6551506.

It is an arithmetic number, because the mean of its divisors is an integer number (596141637).

Almost surely, 2^6551006500 is an apocalyptic number.

It is an amenable number.

6551006500 is an abundant number, since it is smaller than the sum of its proper divisors (7756392788).

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

6551006500 is a wasteful number, since it uses less digits than its factorization.

6551006500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13102032 (or 13102020 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 6551006500 is about 80938.2882201001. The cubic root of 6551006500 is about 1871.1244631147.

The spelling of 6551006500 in words is "six billion, five hundred fifty-one million, six thousand, five hundred".