41565643 has 4 divisors (see below), whose sum is σ = 47503600. Its totient is φ = 35627688.

The previous prime is 41565631. The next prime is 41565659. The reversal of 41565643 is 34656514.

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

It is a cyclic number.

It is not a de Polignac number, because 41565643 - 2¹⁷ = 41434571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41565599 and 41565608.

It is not an unprimeable number, because it can be changed into a prime (41565943) 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, 2968968 + ... + 2968981.

It is an arithmetic number, because the mean of its divisors is an integer number (11875900).

Almost surely, 2^41565643 is an apocalyptic number.

41565643 is a deficient number, since it is larger than the sum of its proper divisors (5937957).

41565643 is an equidigital number, since it uses as much as digits as its factorization.

41565643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937956.

The product of its digits is 43200, while the sum is 34.

The square root of 41565643 is about 6447.1422351302. The cubic root of 41565643 is about 346.4002268354.

The spelling of 41565643 in words is "forty-one million, five hundred sixty-five thousand, six hundred forty-three".