65559841 has 4 divisors (see below), whose sum is σ = 65712384. Its totient is φ = 65407300.

The previous prime is 65559839. The next prime is 65559847. The reversal of 65559841 is 14895556.

65559841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 65559841 - 2¹ = 65559839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65559847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75625 + ... + 76486.

It is an arithmetic number, because the mean of its divisors is an integer number (16428096).

Almost surely, 2^65559841 is an apocalyptic number.

It is an amenable number.

65559841 is a deficient number, since it is larger than the sum of its proper divisors (152543).

65559841 is a wasteful number, since it uses less digits than its factorization.

65559841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152542.

The product of its digits is 216000, while the sum is 43.

The square root of 65559841 is about 8096.9031734361. The cubic root of 65559841 is about 403.2236196513.

The spelling of 65559841 in words is "sixty-five million, five hundred fifty-nine thousand, eight hundred forty-one".