65117488 has 20 divisors (see below), whose sum is σ = 127764640. Its totient is φ = 32145984.

The previous prime is 65117483. The next prime is 65117489. The reversal of 65117488 is 88471156.

65117488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 65117488.

It is not an unprimeable number, because it can be changed into a prime (65117483) 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, 24495 + ... + 27022.

It is an arithmetic number, because the mean of its divisors is an integer number (6388232).

Almost surely, 2^65117488 is an apocalyptic number.

It is an amenable number.

65117488 is a deficient number, since it is larger than the sum of its proper divisors (62647152).

65117488 is a wasteful number, since it uses less digits than its factorization.

65117488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51604 (or 51598 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 65117488 is about 8069.5407552103. The cubic root of 65117488 is about 402.3146798071.

The spelling of 65117488 in words is "sixty-five million, one hundred seventeen thousand, four hundred eighty-eight".