42542655 has 16 divisors (see below), whose sum is σ = 69085824. Its totient is φ = 22350240.

The previous prime is 42542641. The next prime is 42542657. The reversal of 42542655 is 55624524.

42542655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42542655 - 2¹³ = 42534463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542657) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20161 + ... + 22170.

It is an arithmetic number, because the mean of its divisors is an integer number (4317864).

Almost surely, 2^42542655 is an apocalyptic number.

42542655 is a deficient number, since it is larger than the sum of its proper divisors (26543169).

42542655 is a wasteful number, since it uses less digits than its factorization.

42542655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42406.

The product of its digits is 48000, while the sum is 33.

The square root of 42542655 is about 6522.4730739191. The cubic root of 42542655 is about 349.0933130889.

The spelling of 42542655 in words is "forty-two million, five hundred forty-two thousand, six hundred fifty-five".