41663543 has 4 divisors (see below), whose sum is σ = 41811048. Its totient is φ = 41516040.

The previous prime is 41663521. The next prime is 41663563. The reversal of 41663543 is 34536614.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41663543 - 2²² = 37469239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41663513) 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 in 3 ways as a sum of consecutive naturals, for example, 73328 + ... + 73893.

It is an arithmetic number, because the mean of its divisors is an integer number (10452762).

Almost surely, 2^41663543 is an apocalyptic number.

41663543 is a deficient number, since it is larger than the sum of its proper divisors (147505).

41663543 is a wasteful number, since it uses less digits than its factorization.

41663543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147504.

The product of its digits is 25920, while the sum is 32.

The square root of 41663543 is about 6454.7302809645. The cubic root of 41663543 is about 346.6719736408.

The spelling of 41663543 in words is "forty-one million, six hundred sixty-three thousand, five hundred forty-three".