64523504 has 30 divisors (see below), whose sum is σ = 128191200. Its totient is φ = 31461760.

The previous prime is 64523497. The next prime is 64523509. The reversal of 64523504 is 40532546.

64523504 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 (64523509) 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 5 ways as a sum of consecutive naturals, for example, 25697 + ... + 28095.

It is an arithmetic number, because the mean of its divisors is an integer number (4273040).

Almost surely, 2^64523504 is an apocalyptic number.

It is an amenable number.

64523504 is a deficient number, since it is larger than the sum of its proper divisors (63667696).

64523504 is a wasteful number, since it uses less digits than its factorization.

64523504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 64523504 is about 8032.6523639455. The cubic root of 64523504 is about 401.0876730708.

The spelling of 64523504 in words is "sixty-four million, five hundred twenty-three thousand, five hundred four".