41500561 has 4 divisors (see below), whose sum is σ = 41513472. Its totient is φ = 41487652.

The previous prime is 41500531. The next prime is 41500601. The reversal of 41500561 is 16500514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16500514 = 2 ⋅8250257.

It is a cyclic number.

It is not a de Polignac number, because 41500561 - 2⁹ = 41500049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41500531) 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, 2616 + ... + 9478.

It is an arithmetic number, because the mean of its divisors is an integer number (10378368).

Almost surely, 2^41500561 is an apocalyptic number.

It is an amenable number.

41500561 is a deficient number, since it is larger than the sum of its proper divisors (12911).

41500561 is an equidigital number, since it uses as much as digits as its factorization.

41500561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 41500561 is about 6442.0929052599. The cubic root of 41500561 is about 346.2193386900.

The spelling of 41500561 in words is "forty-one million, five hundred thousand, five hundred sixty-one".