42878255 has 8 divisors (see below), whose sum is σ = 58804512. Its totient is φ = 29402208.

The previous prime is 42878201. The next prime is 42878261. The reversal of 42878255 is 55287824.

42878255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42878255 - 2¹⁰ = 42877231 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 7 ways as a sum of consecutive naturals, for example, 612512 + ... + 612581.

It is an arithmetic number, because the mean of its divisors is an integer number (7350564).

Almost surely, 2^42878255 is an apocalyptic number.

42878255 is a deficient number, since it is larger than the sum of its proper divisors (15926257).

42878255 is a wasteful number, since it uses less digits than its factorization.

42878255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225105.

The product of its digits is 179200, while the sum is 41.

The square root of 42878255 is about 6548.1489750921. The cubic root of 42878255 is about 350.0088569187.

The spelling of 42878255 in words is "forty-two million, eight hundred seventy-eight thousand, two hundred fifty-five".