2656488559 has 2 divisors, whose sum is σ = 2656488560. Its totient is φ = 2656488558.

The previous prime is 2656488557. The next prime is 2656488563. The reversal of 2656488559 is 9558846562.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2656488559 - 2¹ = 2656488557 is a prime.

Together with 2656488557, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656488557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328244279 + 1328244280.

It is an arithmetic number, because the mean of its divisors is an integer number (1328244280).

Almost surely, 2^2656488559 is an apocalyptic number.

2656488559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656488559 is an equidigital number, since it uses as much as digits as its factorization.

2656488559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736000, while the sum is 58.

The square root of 2656488559 is about 51541.1346305065. The cubic root of 2656488559 is about 1384.9560228795.

The spelling of 2656488559 in words is "two billion, six hundred fifty-six million, four hundred eighty-eight thousand, five hundred fifty-nine".