6550606551 has 4 divisors (see below), whose sum is σ = 8734142072. Its totient is φ = 4367071032.

The previous prime is 6550606519. The next prime is 6550606553. The reversal of 6550606551 is 1556060556.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6550606551 - 2⁵ = 6550606519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550606553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091767756 + ... + 1091767761.

It is an arithmetic number, because the mean of its divisors is an integer number (2183535518).

Almost surely, 2^6550606551 is an apocalyptic number.

6550606551 is a deficient number, since it is larger than the sum of its proper divisors (2183535521).

6550606551 is a wasteful number, since it uses less digits than its factorization.

6550606551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183535520.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 6550606551 is about 80935.8174790371. The cubic root of 6550606551 is about 1871.0863839998.

The spelling of 6550606551 in words is "six billion, five hundred fifty million, six hundred six thousand, five hundred fifty-one".