11125544247 has 6 divisors (see below), whose sum is σ = 16070230592. Its totient is φ = 7417029492.

The previous prime is 11125544219. The next prime is 11125544257. The reversal of 11125544247 is 74244552111.

11125544247 is a `hidden beast` number, since 11 + 12 + 554 + 42 + 47 = 666.

11125544247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11125544247 - 2¹¹ = 11125542199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11125544257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618085783 + ... + 618085800.

Almost surely, 2^11125544247 is an apocalyptic number.

11125544247 is a deficient number, since it is larger than the sum of its proper divisors (4944686345).

11125544247 is a wasteful number, since it uses less digits than its factorization.

11125544247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236171589 (or 1236171586 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The spelling of 11125544247 in words is "eleven billion, one hundred twenty-five million, five hundred forty-four thousand, two hundred forty-seven".