42542525 has 24 divisors (see below), whose sum is σ = 55454784. Its totient is φ = 32313600.

The previous prime is 42542519. The next prime is 42542531. The reversal of 42542525 is 52524524.

42542525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42542519) and next prime (42542531).

It is not a de Polignac number, because 42542525 - 2¹² = 42538429 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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138422 + ... + 138728.

It is an arithmetic number, because the mean of its divisors is an integer number (2310616).

Almost surely, 2^42542525 is an apocalyptic number.

It is an amenable number.

42542525 is a deficient number, since it is larger than the sum of its proper divisors (12912259).

42542525 is a wasteful number, since it uses less digits than its factorization.

42542525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 576 counting only the distinct ones).

The product of its digits is 16000, while the sum is 29.

The square root of 42542525 is about 6522.4631083663. The cubic root of 42542525 is about 349.0929575071.

The spelling of 42542525 in words is "forty-two million, five hundred forty-two thousand, five hundred twenty-five".