64775056 has 10 divisors (see below), whose sum is σ = 125501702. Its totient is φ = 32387520.

The previous prime is 64775041. The next prime is 64775057. The reversal of 64775056 is 65057746.

It is a happy number.

64775056 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., 50637456 + 14137600 = 7116^2 + 3760^2 .

It is not an unprimeable number, because it can be changed into a prime (64775057) 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, 2024205 + ... + 2024236.

Almost surely, 2^64775056 is an apocalyptic number.

It is an amenable number.

64775056 is a deficient number, since it is larger than the sum of its proper divisors (60726646).

64775056 is a wasteful number, since it uses less digits than its factorization.

64775056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048449 (or 4048443 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 64775056 is about 8048.2952232134. The cubic root of 64775056 is about 401.6082253623.

The spelling of 64775056 in words is "sixty-four million, seven hundred seventy-five thousand, fifty-six".