11256255539 has 2 divisors, whose sum is σ = 11256255540. Its totient is φ = 11256255538.

The previous prime is 11256255533. The next prime is 11256255649. The reversal of 11256255539 is 93555265211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11256255539 - 2⁴ = 11256255523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11256255539.

It is not a weakly prime, because it can be changed into another prime (11256255533) 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, 5628127769 + 5628127770.

It is an arithmetic number, because the mean of its divisors is an integer number (5628127770).

Almost surely, 2^11256255539 is an apocalyptic number.

11256255539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11256255539 is an equidigital number, since it uses as much as digits as its factorization.

11256255539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405000, while the sum is 44.

The spelling of 11256255539 in words is "eleven billion, two hundred fifty-six million, two hundred fifty-five thousand, five hundred thirty-nine".