42517071 has 12 divisors (see below), whose sum is σ = 61634248. Its totient is φ = 28242864.

The previous prime is 42517063. The next prime is 42517091. The reversal of 42517071 is 17071524.

42517071 is a `hidden beast` number, since 425 + 170 + 71 = 666.

It is not a de Polignac number, because 42517071 - 2³ = 42517063 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 (42517021) 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 11 ways as a sum of consecutive naturals, for example, 5800 + ... + 10893.

Almost surely, 2^42517071 is an apocalyptic number.

42517071 is a deficient number, since it is larger than the sum of its proper divisors (19117177).

42517071 is a wasteful number, since it uses less digits than its factorization.

42517071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16982 (or 16979 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 42517071 is about 6520.5115596861. The cubic root of 42517071 is about 349.0233206366.

Adding to 42517071 its reverse (17071524), we get a palindrome (59588595).

The spelling of 42517071 in words is "forty-two million, five hundred seventeen thousand, seventy-one".