6556331 has 2 divisors, whose sum is σ = 6556332. Its totient is φ = 6556330.

The previous prime is 6556301. The next prime is 6556367. The reversal of 6556331 is 1336556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6556331 - 2⁶ = 6556267 is a prime.

It is a super-2 number, since 2×6556331² = 85970952363122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6556294 and 6556303.

It is not a weakly prime, because it can be changed into another prime (6556301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278165 + 3278166.

It is an arithmetic number, because the mean of its divisors is an integer number (3278166).

Almost surely, 2^6556331 is an apocalyptic number.

6556331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6556331 is an equidigital number, since it uses as much as digits as its factorization.

6556331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 29.

The square root of 6556331 is about 2560.5333428800. The cubic root of 6556331 is about 187.1631260772.

The spelling of 6556331 in words is "six million, five hundred fifty-six thousand, three hundred thirty-one".