42025717 has 16 divisors (see below), whose sum is σ = 45505152. Its totient is φ = 38671360.

The previous prime is 42025703. The next prime is 42025723. The reversal of 42025717 is 71752024.

It is a cyclic number.

It is not a de Polignac number, because 42025717 - 2¹¹ = 42023669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42025757) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 251568 + ... + 251734.

It is an arithmetic number, because the mean of its divisors is an integer number (2844072).

Almost surely, 2^42025717 is an apocalyptic number.

It is an amenable number.

42025717 is a deficient number, since it is larger than the sum of its proper divisors (3479435).

42025717 is a wasteful number, since it uses less digits than its factorization.

42025717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 42025717 is about 6482.7245044040. The cubic root of 42025717 is about 347.6735968204.

The spelling of 42025717 in words is "forty-two million, twenty-five thousand, seven hundred seventeen".