885005556 has 24 divisors (see below), whose sum is σ = 2066240064. Its totient is φ = 294826560.

The previous prime is 885005551. The next prime is 885005591. The reversal of 885005556 is 655500588.

885005556 is a nontrivial binomial coefficient, being equal to C(42072, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885005551) 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, 1 + ... + 42071.

It is an arithmetic number, because the mean of its divisors is an integer number (86093336).

Almost surely, 2^885005556 is an apocalyptic number.

885005556 is the 42071-st triangular number and also the 21036-th hexagonal number.

It is an amenable number.

885005556 is an abundant number, since it is smaller than the sum of its proper divisors (1181234508).

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

885005556 is a wasteful number, since it uses less digits than its factorization.

885005556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43831 (or 43829 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 42.

The square root of 885005556 is about 29749.0429425889. The cubic root of 885005556 is about 960.0974857599.

The spelling of 885005556 in words is "eight hundred eighty-five million, five thousand, five hundred fifty-six".