2056605451 has 2 divisors, whose sum is σ = 2056605452. Its totient is φ = 2056605450.

The previous prime is 2056605443. The next prime is 2056605487. The reversal of 2056605451 is 1545066502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2056605451 - 2³ = 2056605443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2056605851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028302725 + 1028302726.

It is an arithmetic number, because the mean of its divisors is an integer number (1028302726).

Almost surely, 2^2056605451 is an apocalyptic number.

2056605451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056605451 is an equidigital number, since it uses as much as digits as its factorization.

2056605451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 2056605451 is about 45349.8120282764. The cubic root of 2056605451 is about 1271.6970412522.

The spelling of 2056605451 in words is "two billion, fifty-six million, six hundred five thousand, four hundred fifty-one".