2011255579 has 2 divisors, whose sum is σ = 2011255580. Its totient is φ = 2011255578.

The previous prime is 2011255577. The next prime is 2011255591. The reversal of 2011255579 is 9755521102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011255579 - 2¹ = 2011255577 is a prime.

Together with 2011255577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2011255573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005627789 + 1005627790.

It is an arithmetic number, because the mean of its divisors is an integer number (1005627790).

Almost surely, 2^2011255579 is an apocalyptic number.

2011255579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011255579 is an equidigital number, since it uses as much as digits as its factorization.

2011255579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 2011255579 is about 44847.0241933620. The cubic root of 2011255579 is about 1262.2801533865.

The spelling of 2011255579 in words is "two billion, eleven million, two hundred fifty-five thousand, five hundred seventy-nine".