41566549 has 4 divisors (see below), whose sum is σ = 41583564. Its totient is φ = 41549536.

The previous prime is 41566519. The next prime is 41566571. The reversal of 41566549 is 94566514.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3928324 + 37638225 = 1982^2 + 6135^2 .

It is a cyclic number.

It is not a de Polignac number, because 41566549 - 2⁵ = 41566517 is a prime.

It is a Smith number, since the sum of its digits (40) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41566519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4072 + ... + 9985.

It is an arithmetic number, because the mean of its divisors is an integer number (10395891).

Almost surely, 2^41566549 is an apocalyptic number.

It is an amenable number.

41566549 is a deficient number, since it is larger than the sum of its proper divisors (17015).

41566549 is a wasteful number, since it uses less digits than its factorization.

41566549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17014.

The product of its digits is 129600, while the sum is 40.

The square root of 41566549 is about 6447.2124984368. The cubic root of 41566549 is about 346.4027436281.

The spelling of 41566549 in words is "forty-one million, five hundred sixty-six thousand, five hundred forty-nine".