6551887 has 2 divisors, whose sum is σ = 6551888. Its totient is φ = 6551886.

The previous prime is 6551879. The next prime is 6551899. The reversal of 6551887 is 7881556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6551887 - 2³ = 6551879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6551087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275943 + 3275944.

It is an arithmetic number, because the mean of its divisors is an integer number (3275944).

Almost surely, 2^6551887 is an apocalyptic number.

6551887 is a deficient number, since it is larger than the sum of its proper divisors (1).

6551887 is an equidigital number, since it uses as much as digits as its factorization.

6551887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 40.

The square root of 6551887 is about 2559.6654078219. The cubic root of 6551887 is about 187.1208289993.

The spelling of 6551887 in words is "six million, five hundred fifty-one thousand, eight hundred eighty-seven".