41855609 has 2 divisors, whose sum is σ = 41855610. Its totient is φ = 41855608.

The previous prime is 41855591. The next prime is 41855617. The reversal of 41855609 is 90655814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39100009 + 2755600 = 6253^2 + 1660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41855609 is a prime.

It is not a weakly prime, because it can be changed into another prime (41855659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20927804 + 20927805.

It is an arithmetic number, because the mean of its divisors is an integer number (20927805).

Almost surely, 2^41855609 is an apocalyptic number.

It is an amenable number.

41855609 is a deficient number, since it is larger than the sum of its proper divisors (1).

41855609 is an equidigital number, since it uses as much as digits as its factorization.

41855609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 41855609 is about 6469.5910999073. The cubic root of 41855609 is about 347.2038682745.

The spelling of 41855609 in words is "forty-one million, eight hundred fifty-five thousand, six hundred nine".