41065509 has 4 divisors (see below), whose sum is σ = 54754016. Its totient is φ = 27377004.

The previous prime is 41065501. The next prime is 41065547. The reversal of 41065509 is 90556014.

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.

It is not a de Polignac number, because 41065509 - 2³ = 41065501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41065501) 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, 6844249 + ... + 6844254.

It is an arithmetic number, because the mean of its divisors is an integer number (13688504).

Almost surely, 2^41065509 is an apocalyptic number.

It is an amenable number.

41065509 is a deficient number, since it is larger than the sum of its proper divisors (13688507).

41065509 is a wasteful number, since it uses less digits than its factorization.

41065509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13688506.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 41065509 is about 6408.2375892284. The cubic root of 41065509 is about 345.0052761218.

The spelling of 41065509 in words is "forty-one million, sixty-five thousand, five hundred nine".