42555238 has 16 divisors (see below), whose sum is σ = 72038160. Its totient is φ = 18676000.

The previous prime is 42555229. The next prime is 42555283. The reversal of 42555238 is 83255524.

42555238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 32713 + ... + 33988.

It is an arithmetic number, because the mean of its divisors is an integer number (4502385).

Almost surely, 2^42555238 is an apocalyptic number.

42555238 is a deficient number, since it is larger than the sum of its proper divisors (29482922).

42555238 is a wasteful number, since it uses less digits than its factorization.

42555238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66743.

The product of its digits is 48000, while the sum is 34.

The square root of 42555238 is about 6523.4375907186. The cubic root of 42555238 is about 349.1277272406.

The spelling of 42555238 in words is "forty-two million, five hundred fifty-five thousand, two hundred thirty-eight".