6550871 has 4 divisors (see below), whose sum is σ = 6562512. Its totient is φ = 6539232.

The previous prime is 6550847. The next prime is 6550879. The reversal of 6550871 is 1780556.

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

It is a cyclic number.

It is not a de Polignac number, because 6550871 - 2¹⁴ = 6534487 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 (6550879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4931 + ... + 6116.

It is an arithmetic number, because the mean of its divisors is an integer number (1640628).

Almost surely, 2^6550871 is an apocalyptic number.

6550871 is a deficient number, since it is larger than the sum of its proper divisors (11641).

6550871 is a wasteful number, since it uses less digits than its factorization.

6550871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 6550871 is about 2559.4669366882. The cubic root of 6550871 is about 187.1111562343. Note that the first 4 decimals are identical.

The spelling of 6550871 in words is "six million, five hundred fifty thousand, eight hundred seventy-one".