66235245 has 16 divisors (see below), whose sum is σ = 107255232. Its totient is φ = 34899200.

The previous prime is 66235243. The next prime is 66235249. The reversal of 66235245 is 54253266.

It is not a de Polignac number, because 66235245 - 2¹ = 66235243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66235241) 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 15 ways as a sum of consecutive naturals, for example, 25356 + ... + 27845.

It is an arithmetic number, because the mean of its divisors is an integer number (6703452).

Almost surely, 2^66235245 is an apocalyptic number.

It is an amenable number.

66235245 is a deficient number, since it is larger than the sum of its proper divisors (41019987).

66235245 is a wasteful number, since it uses less digits than its factorization.

66235245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53292.

The product of its digits is 43200, while the sum is 33.

The square root of 66235245 is about 8138.5038551321. The cubic root of 66235245 is about 404.6035749054.

The spelling of 66235245 in words is "sixty-six million, two hundred thirty-five thousand, two hundred forty-five".