11500055687 has 2 divisors, whose sum is σ = 11500055688. Its totient is φ = 11500055686.

The previous prime is 11500055617. The next prime is 11500055711. The reversal of 11500055687 is 78655000511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11500055687 - 2¹⁰ = 11500054663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11500055687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11500055617) 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, 5750027843 + 5750027844.

It is an arithmetic number, because the mean of its divisors is an integer number (5750027844).

Almost surely, 2^11500055687 is an apocalyptic number.

11500055687 is a deficient number, since it is larger than the sum of its proper divisors (1).

11500055687 is an equidigital number, since it uses as much as digits as its factorization.

11500055687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 38.

The spelling of 11500055687 in words is "eleven billion, five hundred million, fifty-five thousand, six hundred eighty-seven".