11775055247 has 2 divisors, whose sum is σ = 11775055248. Its totient is φ = 11775055246.

The previous prime is 11775055207. The next prime is 11775055249. The reversal of 11775055247 is 74255057711.

It is a strong prime.

It is an emirp because it is prime and its reverse (74255057711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11775055247 - 2¹² = 11775051151 is a prime.

Together with 11775055249, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11775055198 and 11775055207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11775055249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5887527623 + 5887527624.

It is an arithmetic number, because the mean of its divisors is an integer number (5887527624).

Almost surely, 2^11775055247 is an apocalyptic number.

11775055247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11775055247 is an equidigital number, since it uses as much as digits as its factorization.

11775055247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 343000, while the sum is 44.

The spelling of 11775055247 in words is "eleven billion, seven hundred seventy-five million, fifty-five thousand, two hundred forty-seven".