6550812 has 18 divisors (see below), whose sum is σ = 16559088. Its totient is φ = 2183592.

The previous prime is 6550811. The next prime is 6550823. The reversal of 6550812 is 2180556.

6550812 is a `hidden beast` number, since 655 + 0 + 8 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550811) 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 5 ways as a sum of consecutive naturals, for example, 90948 + ... + 91019.

Almost surely, 2^6550812 is an apocalyptic number.

It is an amenable number.

6550812 is an abundant number, since it is smaller than the sum of its proper divisors (10008276).

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

6550812 is a wasteful number, since it uses less digits than its factorization.

6550812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181977 (or 181972 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 6550812 is about 2559.4554108247. The cubic root of 6550812 is about 187.1105944978.

The spelling of 6550812 in words is "six million, five hundred fifty thousand, eight hundred twelve".