65615056 has 40 divisors (see below), whose sum is σ = 144122720. Its totient is φ = 28688256.

The previous prime is 65615051. The next prime is 65615063. The reversal of 65615056 is 65051656.

65615056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65615051) 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 7 ways as a sum of consecutive naturals, for example, 4350 + ... + 12253.

It is an arithmetic number, because the mean of its divisors is an integer number (3603068).

Almost surely, 2^65615056 is an apocalyptic number.

It is an amenable number.

65615056 is an abundant number, since it is smaller than the sum of its proper divisors (78507664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65615056 is a wasteful number, since it uses less digits than its factorization.

65615056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16643 (or 16637 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 65615056 is about 8100.3120927530. The cubic root of 65615056 is about 403.3367872269.

The spelling of 65615056 in words is "sixty-five million, six hundred fifteen thousand, fifty-six".