66535233 has 8 divisors (see below), whose sum is σ = 90776928. Its totient is φ = 43325184.

The previous prime is 66535223. The next prime is 66535237. The reversal of 66535233 is 33253566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66535233 - 2¹² = 66531137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66535194 and 66535203.

It is not an unprimeable number, because it can be changed into a prime (66535237) 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, 257760 + ... + 258017.

It is an arithmetic number, because the mean of its divisors is an integer number (11347116).

Almost surely, 2^66535233 is an apocalyptic number.

It is an amenable number.

66535233 is a deficient number, since it is larger than the sum of its proper divisors (24241695).

66535233 is a wasteful number, since it uses less digits than its factorization.

66535233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515823.

The product of its digits is 48600, while the sum is 33.

The square root of 66535233 is about 8156.9132029218. The cubic root of 66535233 is about 405.2134890282.

Adding to 66535233 its reverse (33253566), we get a palindrome (99788799).

The spelling of 66535233 in words is "sixty-six million, five hundred thirty-five thousand, two hundred thirty-three".