41563665 has 64 divisors (see below), whose sum is σ = 86849280. Its totient is φ = 18593280.

The previous prime is 41563649. The next prime is 41563673. The reversal of 41563665 is 56636514.

41563665 is a `hidden beast` number, since 4 + 15 + 636 + 6 + 5 = 666.

It is not a de Polignac number, because 41563665 - 2⁴ = 41563649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18229 + ... + 20381.

It is an arithmetic number, because the mean of its divisors is an integer number (1357020).

Almost surely, 2^41563665 is an apocalyptic number.

41563665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

41563665 is an abundant number, since it is smaller than the sum of its proper divisors (45285615).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41563665 is a wasteful number, since it uses less digits than its factorization.

41563665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2185 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 41563665 is about 6446.9888320052. The cubic root of 41563665 is about 346.3947319886.

The spelling of 41563665 in words is "forty-one million, five hundred sixty-three thousand, six hundred sixty-five".