41056561 has 12 divisors (see below), whose sum is σ = 51434292. Its totient is φ = 32483808.

The previous prime is 41056559. The next prime is 41056577. The reversal of 41056561 is 16565014.

41056561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1806336 + 39250225 = 1344^2 + 6265^2 .

It is not a de Polignac number, because 41056561 - 2¹ = 41056559 is a prime.

It is a super-2 number, since 2×41056561² = 3371282402293442, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (41056061) 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 11 ways as a sum of consecutive naturals, for example, 31590 + ... + 32863.

It is an arithmetic number, because the mean of its divisors is an integer number (4286191).

Almost surely, 2^41056561 is an apocalyptic number.

It is an amenable number.

41056561 is a deficient number, since it is larger than the sum of its proper divisors (10377731).

41056561 is a wasteful number, since it uses less digits than its factorization.

41056561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64480 (or 64473 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 41056561 is about 6407.5393873155. The cubic root of 41056561 is about 344.9802159067.

The spelling of 41056561 in words is "forty-one million, fifty-six thousand, five hundred sixty-one".