41261561 has 8 divisors (see below), whose sum is σ = 45085248. Its totient is φ = 37450000.

The previous prime is 41261551. The next prime is 41261573. The reversal of 41261561 is 16516214.

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

It is a cyclic number.

It is not a de Polignac number, because 41261561 - 2¹⁰ = 41260537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41261561.

It is not an unprimeable number, because it can be changed into a prime (41261501) 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, 5036 + ... + 10386.

It is an arithmetic number, because the mean of its divisors is an integer number (5635656).

Almost surely, 2^41261561 is an apocalyptic number.

It is an amenable number.

41261561 is a deficient number, since it is larger than the sum of its proper divisors (3823687).

41261561 is a wasteful number, since it uses less digits than its factorization.

41261561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6063.

The product of its digits is 1440, while the sum is 26.

The square root of 41261561 is about 6423.5162489092. The cubic root of 41261561 is about 345.5534378402.

Adding to 41261561 its reverse (16516214), we get a palindrome (57777775).

The spelling of 41261561 in words is "forty-one million, two hundred sixty-one thousand, five hundred sixty-one".