42555868 has 24 divisors (see below), whose sum is σ = 77926464. Its totient is φ = 20313600.

The previous prime is 42555833. The next prime is 42555869. The reversal of 42555868 is 86855524.

42555868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42555868² = 3622003802466848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555869) 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 7 ways as a sum of consecutive naturals, for example, 4948 + ... + 10468.

It is an arithmetic number, because the mean of its divisors is an integer number (3246936).

Almost surely, 2^42555868 is an apocalyptic number.

It is an amenable number.

42555868 is a deficient number, since it is larger than the sum of its proper divisors (35370596).

42555868 is a wasteful number, since it uses less digits than its factorization.

42555868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613 (or 5611 counting only the distinct ones).

The product of its digits is 384000, while the sum is 43.

The square root of 42555868 is about 6523.4858779643. The cubic root of 42555868 is about 349.1294500946.

The spelling of 42555868 in words is "forty-two million, five hundred fifty-five thousand, eight hundred sixty-eight".