64565224 has 8 divisors (see below), whose sum is σ = 121059810. Its totient is φ = 32282608.

The previous prime is 64565213. The next prime is 64565227. The reversal of 64565224 is 42256546.

It can be written as a sum of positive squares in only one way, i.e., 55980324 + 8584900 = 7482^2 + 2930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 64565224.

It is not an unprimeable number, because it can be changed into a prime (64565227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4035319 + ... + 4035334.

Almost surely, 2^64565224 is an apocalyptic number.

It is an amenable number.

64565224 is a deficient number, since it is larger than the sum of its proper divisors (56494586).

64565224 is a wasteful number, since it uses less digits than its factorization.

64565224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070659 (or 8070655 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 64565224 is about 8035.2488449332. The cubic root of 64565224 is about 401.1741003490.

The spelling of 64565224 in words is "sixty-four million, five hundred sixty-five thousand, two hundred twenty-four".