2081559287 has 2 divisors, whose sum is σ = 2081559288. Its totient is φ = 2081559286.

The previous prime is 2081559281. The next prime is 2081559289. The reversal of 2081559287 is 7829551802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2081559287 - 2¹⁰ = 2081558263 is a prime.

Together with 2081559289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081559281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040779643 + 1040779644.

It is an arithmetic number, because the mean of its divisors is an integer number (1040779644).

Almost surely, 2^2081559287 is an apocalyptic number.

2081559287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081559287 is an equidigital number, since it uses as much as digits as its factorization.

2081559287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 2081559287 is about 45624.1086159500. The cubic root of 2081559287 is about 1276.8197594551.

The spelling of 2081559287 in words is "two billion, eighty-one million, five hundred fifty-nine thousand, two hundred eighty-seven".