65485563 has 24 divisors (see below), whose sum is σ = 103363344. Its totient is φ = 36632640.

The previous prime is 65485447. The next prime is 65485579. The reversal of 65485563 is 36558456.

It is a happy number.

It is not a de Polignac number, because 65485563 - 2¹⁰ = 65484539 is a prime.

It is a super-2 number, since 2×65485563² = 8576717922853938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65485363) 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 23 ways as a sum of consecutive naturals, for example, 2220 + ... + 11657.

It is an arithmetic number, because the mean of its divisors is an integer number (4306806).

Almost surely, 2^65485563 is an apocalyptic number.

65485563 is a deficient number, since it is larger than the sum of its proper divisors (37877781).

65485563 is a wasteful number, since it uses less digits than its factorization.

65485563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13915 (or 13904 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 65485563 is about 8092.3150581277. The cubic root of 65485563 is about 403.0712806490.

The spelling of 65485563 in words is "sixty-five million, four hundred eighty-five thousand, five hundred sixty-three".