41556561 has 8 divisors (see below), whose sum is σ = 57817920. Its totient is φ = 26499792.

The previous prime is 41556539. The next prime is 41556563. The reversal of 41556561 is 16565514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 41556561 - 2⁶ = 41556497 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (41556563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301066 + ... + 301203.

It is an arithmetic number, because the mean of its divisors is an integer number (7227240).

Almost surely, 2^41556561 is an apocalyptic number.

It is an amenable number.

41556561 is a deficient number, since it is larger than the sum of its proper divisors (16261359).

41556561 is a wasteful number, since it uses less digits than its factorization.

41556561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602295.

The product of its digits is 18000, while the sum is 33.

The square root of 41556561 is about 6446.4378535746. The cubic root of 41556561 is about 346.3749957728.

The spelling of 41556561 in words is "forty-one million, five hundred fifty-six thousand, five hundred sixty-one".