41506509 has 12 divisors (see below), whose sum is σ = 60831008. Its totient is φ = 25155240.

The previous prime is 41506471. The next prime is 41506519. The reversal of 41506509 is 90560514.

It is a de Polignac number, because none of the positive numbers 2^k-41506509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41506519) 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, 56809 + ... + 57534.

Almost surely, 2^41506509 is an apocalyptic number.

It is an amenable number.

41506509 is a deficient number, since it is larger than the sum of its proper divisors (19324499).

41506509 is a wasteful number, since it uses less digits than its factorization.

41506509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114368 (or 114357 counting only the distinct ones).

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

The square root of 41506509 is about 6442.5545399321. The cubic root of 41506509 is about 346.2358783399.

The spelling of 41506509 in words is "forty-one million, five hundred six thousand, five hundred nine".