42805325 has 6 divisors (see below), whose sum is σ = 53078634. Its totient is φ = 34244240.

The previous prime is 42805319. The next prime is 42805331. The reversal of 42805325 is 52350824.

It is an interprime number because it is at equal distance from previous prime (42805319) and next prime (42805331).

It can be written as a sum of positive squares in 3 ways, for example, as 438244 + 42367081 = 662^2 + 6509^2 .

It is not a de Polignac number, because 42805325 - 2⁸ = 42805069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 856082 + ... + 856131.

It is an arithmetic number, because the mean of its divisors is an integer number (8846439).

Almost surely, 2^42805325 is an apocalyptic number.

It is an amenable number.

42805325 is a deficient number, since it is larger than the sum of its proper divisors (10273309).

42805325 is a wasteful number, since it uses less digits than its factorization.

42805325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712223 (or 1712218 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 42805325 is about 6542.5778558608. The cubic root of 42805325 is about 349.8103053703.

The spelling of 42805325 in words is "forty-two million, eight hundred five thousand, three hundred twenty-five".