64555332 has 12 divisors (see below), whose sum is σ = 150629136. Its totient is φ = 21518440.

The previous prime is 64555327. The next prime is 64555339. The reversal of 64555332 is 23355546.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 64555293 and 64555302.

It is not an unprimeable number, because it can be changed into a prime (64555339) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2689794 + ... + 2689817.

It is an arithmetic number, because the mean of its divisors is an integer number (12552428).

Almost surely, 2^64555332 is an apocalyptic number.

It is an amenable number.

64555332 is an abundant number, since it is smaller than the sum of its proper divisors (86073804).

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

64555332 is a wasteful number, since it uses less digits than its factorization.

64555332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379618 (or 5379616 counting only the distinct ones).

The product of its digits is 54000, while the sum is 33.

The square root of 64555332 is about 8034.6332834797. The cubic root of 64555332 is about 401.1536114200.

The spelling of 64555332 in words is "sixty-four million, five hundred fifty-five thousand, three hundred thirty-two".