2056421700 has 54 divisors (see below), whose sum is σ = 6445742394. Its totient is φ = 548378880.

The previous prime is 2056421683. The next prime is 2056421701. The reversal of 2056421700 is 71246502.

2056421700 is a `hidden beast` number, since 2 + 0 + 5 + 642 + 17 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 4875264 + 2051546436 = 2208^2 + 45294^2 .

It is not an unprimeable number, because it can be changed into a prime (2056421701) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1141557 + ... + 1143356.

Almost surely, 2^2056421700 is an apocalyptic number.

2056421700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2056421700 is an abundant number, since it is smaller than the sum of its proper divisors (4389320694).

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

2056421700 is a wasteful number, since it uses less digits than its factorization.

2056421700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284933 (or 2284923 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2056421700 is about 45347.7860540071. The cubic root of 2056421700 is about 1271.6591661276.

The spelling of 2056421700 in words is "two billion, fifty-six million, four hundred twenty-one thousand, seven hundred".