6553671 has 4 divisors (see below), whose sum is σ = 8738232. Its totient is φ = 4369112.

The previous prime is 6553663. The next prime is 6553733. The reversal of 6553671 is 1763556.

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 6553671 - 2³ = 6553663 is a prime.

It is a D-number.

6553671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6553621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092276 + ... + 1092281.

It is an arithmetic number, because the mean of its divisors is an integer number (2184558).

Almost surely, 2^6553671 is an apocalyptic number.

6553671 is a deficient number, since it is larger than the sum of its proper divisors (2184561).

6553671 is a wasteful number, since it uses less digits than its factorization.

6553671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184560.

The product of its digits is 18900, while the sum is 33.

The square root of 6553671 is about 2560.0138671499. The cubic root of 6553671 is about 187.1378110416.

The spelling of 6553671 in words is "six million, five hundred fifty-three thousand, six hundred seventy-one".