65500113 has 24 divisors (see below), whose sum is σ = 106014528. Its totient is φ = 35799456.

The previous prime is 65500109. The next prime is 65500121. The reversal of 65500113 is 31100556.

It is a happy number.

It is not a de Polignac number, because 65500113 - 2² = 65500109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65500113.

It is not an unprimeable number, because it can be changed into a prime (65500013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6306 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (4417272).

Almost surely, 2^65500113 is an apocalyptic number.

It is an amenable number.

65500113 is a deficient number, since it is larger than the sum of its proper divisors (40514415).

65500113 is a wasteful number, since it uses less digits than its factorization.

65500113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19413 (or 19406 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 65500113 is about 8093.2140092796. The cubic root of 65500113 is about 403.1011307543.

Adding to 65500113 its reverse (31100556), we get a palindrome (96600669).

The spelling of 65500113 in words is "sixty-five million, five hundred thousand, one hundred thirteen".