255555442142 has 32 divisors (see below), whose sum is σ = 514685090304. Its totient is φ = 91908050400.

The previous prime is 255555442123. The next prime is 255555442187. The reversal of 255555442142 is 241244555552.

255555442142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 255555442093 and 255555442102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63823034 + ... + 63827037.

It is an arithmetic number, because the mean of its divisors is an integer number (16083909072).

Almost surely, 2^255555442142 is an apocalyptic number.

255555442142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

255555442142 is an abundant number, since it is smaller than the sum of its proper divisors (259129648162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255555442142 is a wasteful number, since it uses less digits than its factorization.

255555442142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127650104.

The product of its digits is 1600000, while the sum is 44.

Adding to 255555442142 its reverse (241244555552), we get a palindrome (496799997694).

The spelling of 255555442142 in words is "two hundred fifty-five billion, five hundred fifty-five million, four hundred forty-two thousand, one hundred forty-two".