42542017 has 8 divisors (see below), whose sum is σ = 48833600. Its totient is φ = 36303984.

The previous prime is 42542011. The next prime is 42542047. The reversal of 42542017 is 71024524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42542017 - 2¹¹ = 42539969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42541982 and 42542000.

It is not an unprimeable number, because it can be changed into a prime (42542011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11667 + ... + 14872.

It is an arithmetic number, because the mean of its divisors is an integer number (6104200).

Almost surely, 2^42542017 is an apocalyptic number.

It is an amenable number.

42542017 is a deficient number, since it is larger than the sum of its proper divisors (6291583).

42542017 is a wasteful number, since it uses less digits than its factorization.

42542017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26775.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42542017 is about 6522.4241659064. The cubic root of 42542017 is about 349.0915679960.

The spelling of 42542017 in words is "forty-two million, five hundred forty-two thousand, seventeen".