64515248 has 20 divisors (see below), whose sum is σ = 142855440. Its totient is φ = 27649344.

The previous prime is 64515233. The next prime is 64515259. The reversal of 64515248 is 84251546.

64515248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 287903 + ... + 288126.

It is an arithmetic number, because the mean of its divisors is an integer number (7142772).

Almost surely, 2^64515248 is an apocalyptic number.

It is an amenable number.

64515248 is an abundant number, since it is smaller than the sum of its proper divisors (78340192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64515248 is a wasteful number, since it uses less digits than its factorization.

64515248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576044 (or 576038 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 64515248 is about 8032.1384450220. The cubic root of 64515248 is about 401.0705655009.

The spelling of 64515248 in words is "sixty-four million, five hundred fifteen thousand, two hundred forty-eight".