6553971 has 12 divisors (see below), whose sum is σ = 9793680. Its totient is φ = 4218480.

The previous prime is 6553969. The next prime is 6553979. The reversal of 6553971 is 1793556.

It is a happy number.

It is not a de Polignac number, because 6553971 - 2¹ = 6553969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6553979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12295 + ... + 12816.

It is an arithmetic number, because the mean of its divisors is an integer number (816140).

Almost surely, 2^6553971 is an apocalyptic number.

6553971 is a deficient number, since it is larger than the sum of its proper divisors (3239709).

6553971 is a wasteful number, since it uses less digits than its factorization.

6553971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25146 (or 25143 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 6553971 is about 2560.0724599120. The cubic root of 6553971 is about 187.1406664634.

The spelling of 6553971 in words is "six million, five hundred fifty-three thousand, nine hundred seventy-one".