65485559 has 4 divisors (see below), whose sum is σ = 65520504. Its totient is φ = 65450616.

The previous prime is 65485447. The next prime is 65485579. The reversal of 65485559 is 95558456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65485559 - 2¹² = 65481463 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 (65485579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14492 + ... + 18465.

It is an arithmetic number, because the mean of its divisors is an integer number (16380126).

Almost surely, 2^65485559 is an apocalyptic number.

65485559 is a deficient number, since it is larger than the sum of its proper divisors (34945).

65485559 is a wasteful number, since it uses less digits than its factorization.

65485559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34944.

The product of its digits is 1080000, while the sum is 47.

The square root of 65485559 is about 8092.3148109796. The cubic root of 65485559 is about 403.0712724422.

It can be divided in two parts, 654855 and 59, that multiplied together give a triangular number (38636445 = T₈₇₉₀).

The spelling of 65485559 in words is "sixty-five million, four hundred eighty-five thousand, five hundred fifty-nine".