66025735 has 4 divisors (see below), whose sum is σ = 79230888. Its totient is φ = 52820584.

The previous prime is 66025733. The next prime is 66025759. The reversal of 66025735 is 53752066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66025735 - 2¹ = 66025733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66025735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66025733) 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 3 ways as a sum of consecutive naturals, for example, 6602569 + ... + 6602578.

It is an arithmetic number, because the mean of its divisors is an integer number (19807722).

Almost surely, 2^66025735 is an apocalyptic number.

66025735 is a deficient number, since it is larger than the sum of its proper divisors (13205153).

66025735 is a wasteful number, since it uses less digits than its factorization.

66025735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13205152.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 66025735 is about 8125.6221300280. The cubic root of 66025735 is about 404.1765211518.

The spelling of 66025735 in words is "sixty-six million, twenty-five thousand, seven hundred thirty-five".