41561569 has 12 divisors (see below), whose sum is σ = 50133504. Its totient is φ = 33747192.

The previous prime is 41561539. The next prime is 41561579. The reversal of 41561569 is 96516514.

It is not a de Polignac number, because 41561569 - 2⁵ = 41561537 is a prime.

It is a super-2 number, since 2×41561569² = 3454728035483522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41561539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5697 + ... + 10750.

It is an arithmetic number, because the mean of its divisors is an integer number (4177792).

Almost surely, 2^41561569 is an apocalyptic number.

It is an amenable number.

41561569 is a deficient number, since it is larger than the sum of its proper divisors (8571935).

41561569 is a wasteful number, since it uses less digits than its factorization.

41561569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16492 (or 16473 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The square root of 41561569 is about 6446.8262734465. The cubic root of 41561569 is about 346.3889091498.

The spelling of 41561569 in words is "forty-one million, five hundred sixty-one thousand, five hundred sixty-nine".