42542755 has 32 divisors (see below), whose sum is σ = 57729024. Its totient is φ = 29922816.

The previous prime is 42542723. The next prime is 42542779. The reversal of 42542755 is 55724524.

It is not a de Polignac number, because 42542755 - 2⁵ = 42542723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42542755.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 91654 + ... + 92116.

It is an arithmetic number, because the mean of its divisors is an integer number (1804032).

Almost surely, 2^42542755 is an apocalyptic number.

42542755 is a deficient number, since it is larger than the sum of its proper divisors (15186269).

42542755 is a wasteful number, since it uses less digits than its factorization.

42542755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555.

The product of its digits is 56000, while the sum is 34.

The square root of 42542755 is about 6522.4807397186. The cubic root of 42542755 is about 349.0935866128.

The spelling of 42542755 in words is "forty-two million, five hundred forty-two thousand, seven hundred fifty-five".