41564543 has 2 divisors, whose sum is σ = 41564544. Its totient is φ = 41564542.

The previous prime is 41564539. The next prime is 41564557. The reversal of 41564543 is 34546514.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41564543 - 2² = 41564539 is a prime.

It is a super-2 number, since 2×41564543² = 3455222469597698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41564563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20782271 + 20782272.

It is an arithmetic number, because the mean of its divisors is an integer number (20782272).

Almost surely, 2^41564543 is an apocalyptic number.

41564543 is a deficient number, since it is larger than the sum of its proper divisors (1).

41564543 is an equidigital number, since it uses as much as digits as its factorization.

41564543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 32.

The square root of 41564543 is about 6447.0569254506. The cubic root of 41564543 is about 346.3971710776.

The spelling of 41564543 in words is "forty-one million, five hundred sixty-four thousand, five hundred forty-three".