41563649 has 2 divisors, whose sum is σ = 41563650. Its totient is φ = 41563648.

The previous prime is 41563637. The next prime is 41563673. The reversal of 41563649 is 94636514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41280625 + 283024 = 6425^2 + 532^2 .

It is a cyclic number.

It is not a de Polignac number, because 41563649 - 2⁴ = 41563633 is a prime.

It is not a weakly prime, because it can be changed into another prime (41563679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20781824 + 20781825.

It is an arithmetic number, because the mean of its divisors is an integer number (20781825).

Almost surely, 2^41563649 is an apocalyptic number.

It is an amenable number.

41563649 is a deficient number, since it is larger than the sum of its proper divisors (1).

41563649 is an equidigital number, since it uses as much as digits as its factorization.

41563649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 41563649 is about 6446.9875911157. The cubic root of 41563649 is about 346.3946875402.

The spelling of 41563649 in words is "forty-one million, five hundred sixty-three thousand, six hundred forty-nine".