255549842 has 16 divisors (see below), whose sum is σ = 387011520. Its totient is φ = 126551568.

The previous prime is 255549823. The next prime is 255549851. The reversal of 255549842 is 248945552.

It is a junction number, because it is equal to n+sod(n) for n = 255549793 and 255549802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111593 + ... + 113859.

It is an arithmetic number, because the mean of its divisors is an integer number (24188220).

Almost surely, 2^255549842 is an apocalyptic number.

255549842 is a deficient number, since it is larger than the sum of its proper divisors (131461678).

255549842 is a wasteful number, since it uses less digits than its factorization.

255549842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785.

The product of its digits is 576000, while the sum is 44.

The square root of 255549842 is about 15985.9263729069. The cubic root of 255549842 is about 634.5880246730.

The spelling of 255549842 in words is "two hundred fifty-five million, five hundred forty-nine thousand, eight hundred forty-two".