41445561 has 16 divisors (see below), whose sum is σ = 56096768. Its totient is φ = 27216000.

The previous prime is 41445539. The next prime is 41445577. The reversal of 41445561 is 16554414.

41445561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 41445561 - 2⁵ = 41445529 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41445511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68661 + ... + 69261.

It is an arithmetic number, because the mean of its divisors is an integer number (3506048).

Almost surely, 2^41445561 is an apocalyptic number.

It is an amenable number.

41445561 is a deficient number, since it is larger than the sum of its proper divisors (14651207).

41445561 is a wasteful number, since it uses less digits than its factorization.

41445561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its digits is 9600, while the sum is 30.

The square root of 41445561 is about 6437.8226909414. The cubic root of 41445561 is about 346.0663248398.

Adding to 41445561 its reverse (16554414), we get a palindrome (57999975).

The spelling of 41445561 in words is "forty-one million, four hundred forty-five thousand, five hundred sixty-one".