64535552 has 88 divisors (see below), whose sum is σ = 141488640. Its totient is φ = 29306880.

The previous prime is 64535509. The next prime is 64535563. The reversal of 64535552 is 25553546.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603083 + ... + 603189.

Almost surely, 2^64535552 is an apocalyptic number.

64535552 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64535552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70744320).

64535552 is an abundant number, since it is smaller than the sum of its proper divisors (76953088).

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

64535552 is a wasteful number, since it uses less digits than its factorization.

64535552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 159 counting only the distinct ones).

The product of its digits is 90000, while the sum is 35.

The square root of 64535552 is about 8033.4022680307. The cubic root of 64535552 is about 401.1126355690.

The spelling of 64535552 in words is "sixty-four million, five hundred thirty-five thousand, five hundred fifty-two".