66025041 has 4 divisors (see below), whose sum is σ = 88033392. Its totient is φ = 44016692.

The previous prime is 66025039. The next prime is 66025061. The reversal of 66025041 is 14052066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66025041 - 2¹ = 66025039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66025021) 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, 11004171 + ... + 11004176.

It is an arithmetic number, because the mean of its divisors is an integer number (22008348).

Almost surely, 2^66025041 is an apocalyptic number.

It is an amenable number.

66025041 is a deficient number, since it is larger than the sum of its proper divisors (22008351).

66025041 is a wasteful number, since it uses less digits than its factorization.

66025041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22008350.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 66025041 is about 8125.5794254933. The cubic root of 66025041 is about 404.1751050399.

The spelling of 66025041 in words is "sixty-six million, twenty-five thousand, forty-one".