2056609872 has 80 divisors (see below), whose sum is σ = 5948458560. Its totient is φ = 680284800.

The previous prime is 2056609859. The next prime is 2056609873. The reversal of 2056609872 is 2789066502.

2056609872 is a `hidden beast` number, since 2 + 0 + 566 + 0 + 9 + 87 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056609873) 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 15 ways as a sum of consecutive naturals, for example, 38422 + ... + 74762.

It is an arithmetic number, because the mean of its divisors is an integer number (74355732).

Almost surely, 2^2056609872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2056609872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2974229280).

2056609872 is an abundant number, since it is smaller than the sum of its proper divisors (3891848688).

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

2056609872 is a wasteful number, since it uses less digits than its factorization.

2056609872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36489 (or 36477 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2056609872 is about 45349.8607715614. The cubic root of 2056609872 is about 1271.6979524898.

The spelling of 2056609872 in words is "two billion, fifty-six million, six hundred nine thousand, eight hundred seventy-two".