6561283 has 2 divisors, whose sum is σ = 6561284. Its totient is φ = 6561282.

The previous prime is 6561281. The next prime is 6561287. The reversal of 6561283 is 3821656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6561283 - 2¹ = 6561281 is a prime.

Together with 6561281, it forms a pair of twin primes.

It is an Ulam number.

It is the 2562-nd Hogben number.

It is not a weakly prime, because it can be changed into another prime (6561281) by changing a digit.

It is a nontrivial repunit in base 2561.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280641 + 3280642.

It is an arithmetic number, because the mean of its divisors is an integer number (3280642).

Almost surely, 2^6561283 is an apocalyptic number.

6561283 is a deficient number, since it is larger than the sum of its proper divisors (1).

6561283 is an equidigital number, since it uses as much as digits as its factorization.

6561283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 6561283 is about 2561.5001463986. The cubic root of 6561283 is about 187.2102356854.

The spelling of 6561283 in words is "six million, five hundred sixty-one thousand, two hundred eighty-three".