66255532 has 24 divisors (see below), whose sum is σ = 133408800. Its totient is φ = 28202880.

The previous prime is 66255503. The next prime is 66255533. The reversal of 66255532 is 23555266.

It is not an unprimeable number, because it can be changed into a prime (66255533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3769 + ... + 12112.

It is an arithmetic number, because the mean of its divisors is an integer number (5558700).

Almost surely, 2^66255532 is an apocalyptic number.

It is an amenable number.

66255532 is an abundant number, since it is smaller than the sum of its proper divisors (67153268).

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

66255532 is a wasteful number, since it uses less digits than its factorization.

66255532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16041 (or 16039 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 66255532 is about 8139.7501190147. The cubic root of 66255532 is about 404.6448789717.

The spelling of 66255532 in words is "sixty-six million, two hundred fifty-five thousand, five hundred thirty-two".