3855555556 has 12 divisors (see below), whose sum is σ = 6781473468. Its totient is φ = 1917991712.

The previous prime is 3855555547. The next prime is 3855555589. The reversal of 3855555556 is 6555555583.

It can be written as a sum of positive squares in 2 ways, for example, as 3196093156 + 659462400 = 56534^2 + 25680^2 .

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 3 ways as a sum of consecutive naturals, for example, 2445631 + ... + 2447206.

It is an arithmetic number, because the mean of its divisors is an integer number (565122789).

Almost surely, 2^3855555556 is an apocalyptic number.

It is an amenable number.

3855555556 is a deficient number, since it is larger than the sum of its proper divisors (2925917912).

3855555556 is a wasteful number, since it uses less digits than its factorization.

3855555556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893038 (or 4893036 counting only the distinct ones).

The product of its digits is 11250000, while the sum is 52.

The square root of 3855555556 is about 62093.1200375694. The cubic root of 3855555556 is about 1568.0587195359.

The spelling of 3855555556 in words is "three billion, eight hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-six".