2056551587 has 2 divisors, whose sum is σ = 2056551588. Its totient is φ = 2056551586.

The previous prime is 2056551529. The next prime is 2056551701. The reversal of 2056551587 is 7851556502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2056551587 - 2¹⁰ = 2056550563 is a prime.

It is not a weakly prime, because it can be changed into another prime (2056554587) 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, 1028275793 + 1028275794.

It is an arithmetic number, because the mean of its divisors is an integer number (1028275794).

Almost surely, 2^2056551587 is an apocalyptic number.

2056551587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056551587 is an equidigital number, since it uses as much as digits as its factorization.

2056551587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420000, while the sum is 44.

The square root of 2056551587 is about 45349.2181520255. The cubic root of 2056551587 is about 1271.6859389302.

The spelling of 2056551587 in words is "two billion, fifty-six million, five hundred fifty-one thousand, five hundred eighty-seven".