2056571944 has 48 divisors (see below), whose sum is σ = 4492987380. Its totient is φ = 879943680.

The previous prime is 2056571941. The next prime is 2056571947. The reversal of 2056571944 is 4491756502.

It is an interprime number because it is at equal distance from previous prime (2056571941) and next prime (2056571947).

It can be written as a sum of positive squares in 2 ways, for example, as 1575296100 + 481275844 = 39690^2 + 21938^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2056571944.

It is not an unprimeable number, because it can be changed into a prime (2056571941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255144 + ... + 263080.

Almost surely, 2^2056571944 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 2056571944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246493690).

2056571944 is an abundant number, since it is smaller than the sum of its proper divisors (2436415436).

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

2056571944 is a wasteful number, since it uses less digits than its factorization.

2056571944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8618 (or 8607 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 2056571944 is about 45349.4425985590. The cubic root of 2056571944 is about 1271.6901348903.

The spelling of 2056571944 in words is "two billion, fifty-six million, five hundred seventy-one thousand, nine hundred forty-four".