2821000556 has 12 divisors (see below), whose sum is σ = 5385546600. Its totient is φ = 1282272960.

The previous prime is 2821000529. The next prime is 2821000639. The reversal of 2821000556 is 6550001282.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32056781 + ... + 32056868.

It is an arithmetic number, because the mean of its divisors is an integer number (448795550).

Almost surely, 2^2821000556 is an apocalyptic number.

It is an amenable number.

2821000556 is a deficient number, since it is larger than the sum of its proper divisors (2564546044).

2821000556 is a wasteful number, since it uses less digits than its factorization.

2821000556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64113664 (or 64113662 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2821000556 is about 53113.0921336727. The cubic root of 2821000556 is about 1412.9747160070.

The spelling of 2821000556 in words is "two billion, eight hundred twenty-one million, five hundred fifty-six", and thus it is an aban number.