66524228 has 12 divisors (see below), whose sum is σ = 116523792. Its totient is φ = 33231720.

The previous prime is 66524203. The next prime is 66524299. The reversal of 66524228 is 82242566.

66524228 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, 2258 + ... + 11753.

It is an arithmetic number, because the mean of its divisors is an integer number (9710316).

Almost surely, 2^66524228 is an apocalyptic number.

It is an amenable number.

66524228 is a deficient number, since it is larger than the sum of its proper divisors (49999564).

66524228 is a wasteful number, since it uses less digits than its factorization.

66524228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15202 (or 15200 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 66524228 is about 8156.2385938618. The cubic root of 66524228 is about 405.1911468788.

The spelling of 66524228 in words is "sixty-six million, five hundred twenty-four thousand, two hundred twenty-eight".