64565056 has 14 divisors (see below), whose sum is σ = 128121410. Its totient is φ = 32282496.

The previous prime is 64565051. The next prime is 64565131. The reversal of 64565056 is 65056546.

64565056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43771456 + 20793600 = 6616^2 + 4560^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64565051) 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 as a sum of consecutive naturals, namely, 504351 + ... + 504478.

Almost surely, 2^64565056 is an apocalyptic number.

It is an amenable number.

64565056 is a deficient number, since it is larger than the sum of its proper divisors (63556354).

64565056 is a wasteful number, since it uses less digits than its factorization.

64565056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008841 (or 1008831 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 64565056 is about 8035.2383909875. The cubic root of 64565056 is about 401.1737523944.

The spelling of 64565056 in words is "sixty-four million, five hundred sixty-five thousand, fifty-six".