64006504 has 16 divisors (see below), whose sum is σ = 122047200. Its totient is φ = 31460592.

The previous prime is 64006499. The next prime is 64006531. The reversal of 64006504 is 40560046.

It is a happy number.

64006504 is a modest number, since divided by 6504 gives 640 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67332 + ... + 68275.

It is an arithmetic number, because the mean of its divisors is an integer number (7627950).

Almost surely, 2^64006504 is an apocalyptic number.

It is an amenable number.

64006504 is a deficient number, since it is larger than the sum of its proper divisors (58040696).

64006504 is a wasteful number, since it uses less digits than its factorization.

64006504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135672 (or 135668 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 64006504 is about 8000.4064896729. The cubic root of 64006504 is about 400.0135495410.

The spelling of 64006504 in words is "sixty-four million, six thousand, five hundred four".