2259556987 has 2 divisors, whose sum is σ = 2259556988. Its totient is φ = 2259556986.

The previous prime is 2259556967. The next prime is 2259556997. The reversal of 2259556987 is 7896559522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2259556987 - 2¹⁵ = 2259524219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2259556967) 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, 1129778493 + 1129778494.

It is an arithmetic number, because the mean of its divisors is an integer number (1129778494).

Almost surely, 2^2259556987 is an apocalyptic number.

2259556987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2259556987 is an equidigital number, since it uses as much as digits as its factorization.

2259556987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 58.

The square root of 2259556987 is about 47534.7976434107. The cubic root of 2259556987 is about 1312.2233647303.

The spelling of 2259556987 in words is "two billion, two hundred fifty-nine million, five hundred fifty-six thousand, nine hundred eighty-seven".