6563461 has 2 divisors, whose sum is σ = 6563462. Its totient is φ = 6563460.

The previous prime is 6563443. The next prime is 6563507. The reversal of 6563461 is 1643656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6477025 + 86436 = 2545^2 + 294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6563461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6563261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3281730 + 3281731.

It is an arithmetic number, because the mean of its divisors is an integer number (3281731).

Almost surely, 2^6563461 is an apocalyptic number.

It is an amenable number.

6563461 is a deficient number, since it is larger than the sum of its proper divisors (1).

6563461 is an equidigital number, since it uses as much as digits as its factorization.

6563461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 6563461 is about 2561.9252526176. The cubic root of 6563461 is about 187.2309480361.

The spelling of 6563461 in words is "six million, five hundred sixty-three thousand, four hundred sixty-one".