2056455872 has 28 divisors (see below), whose sum is σ = 4122861960. Its totient is φ = 1017624576.

The previous prime is 2056455839. The next prime is 2056455883. The reversal of 2056455872 is 2785546502.

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, 159422 + ... + 171837.

It is an arithmetic number, because the mean of its divisors is an integer number (147245070).

Almost surely, 2^2056455872 is an apocalyptic number.

It is an amenable number.

2056455872 is an abundant number, since it is smaller than the sum of its proper divisors (2066406088).

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

2056455872 is an equidigital number, since it uses as much as digits as its factorization.

2056455872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331368 (or 331358 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 44.

The square root of 2056455872 is about 45348.1628293804. The cubic root of 2056455872 is about 1271.6662098996. Note that the first 3 decimals are identical.

The spelling of 2056455872 in words is "two billion, fifty-six million, four hundred fifty-five thousand, eight hundred seventy-two".