42579065 has 4 divisors (see below), whose sum is σ = 51094884. Its totient is φ = 34063248.

The previous prime is 42579041. The next prime is 42579077. The reversal of 42579065 is 56097524.

It is a happy number.

42579065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33674809 + 8904256 = 5803^2 + 2984^2 .

It is a cyclic number.

It is not a de Polignac number, because 42579065 - 2⁶ = 42579001 is a prime.

It is a Duffinian number.

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, 4257902 + ... + 4257911.

It is an arithmetic number, because the mean of its divisors is an integer number (12773721).

Almost surely, 2^42579065 is an apocalyptic number.

It is an amenable number.

42579065 is a deficient number, since it is larger than the sum of its proper divisors (8515819).

42579065 is an equidigital number, since it uses as much as digits as its factorization.

42579065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8515818.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 42579065 is about 6525.2635962082. The cubic root of 42579065 is about 349.1928748360.

The spelling of 42579065 in words is "forty-two million, five hundred seventy-nine thousand, sixty-five".