64539552 has 96 divisors (see below), whose sum is σ = 211244544. Its totient is φ = 16761600.

The previous prime is 64539547. The next prime is 64539583. The reversal of 64539552 is 25593546.

64539552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 64539552.

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 15 ways as a sum of consecutive naturals, for example, 3027 + ... + 11757.

It is an arithmetic number, because the mean of its divisors is an integer number (2200464).

Almost surely, 2^64539552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64539552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105622272).

64539552 is an abundant number, since it is smaller than the sum of its proper divisors (146704992).

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

64539552 is a wasteful number, since it uses less digits than its factorization.

64539552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8762 (or 8754 counting only the distinct ones).

The product of its digits is 162000, while the sum is 39.

The square root of 64539552 is about 8033.6512246923. The cubic root of 64539552 is about 401.1209225640.

The spelling of 64539552 in words is "sixty-four million, five hundred thirty-nine thousand, five hundred fifty-two".