42542512 has 20 divisors (see below), whose sum is σ = 83059416. Its totient is φ = 21107840.

The previous prime is 42542503. The next prime is 42542519. The reversal of 42542512 is 21524524.

It is not an unprimeable number, because it can be changed into a prime (42542519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8053 + ... + 12244.

Almost surely, 2^42542512 is an apocalyptic number.

It is an amenable number.

42542512 is a deficient number, since it is larger than the sum of its proper divisors (40516904).

42542512 is a wasteful number, since it uses less digits than its factorization.

42542512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20436 (or 20430 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 42542512 is about 6522.4621118102. The cubic root of 42542512 is about 349.0929219489.

The spelling of 42542512 in words is "forty-two million, five hundred forty-two thousand, five hundred twelve".