6555971 has 2 divisors, whose sum is σ = 6555972. Its totient is φ = 6555970.

The previous prime is 6555961. The next prime is 6556003. The reversal of 6555971 is 1795556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6555971 - 2⁶ = 6555907 is a prime.

It is not a weakly prime, because it can be changed into another prime (6555961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277985 + 3277986.

It is an arithmetic number, because the mean of its divisors is an integer number (3277986).

Almost surely, 2^6555971 is an apocalyptic number.

6555971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555971 is an equidigital number, since it uses as much as digits as its factorization.

6555971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47250, while the sum is 38.

The square root of 6555971 is about 2560.4630440606. The cubic root of 6555971 is about 187.1597003829.

The spelling of 6555971 in words is "six million, five hundred fifty-five thousand, nine hundred seventy-one".