11547725251 has 2 divisors, whose sum is σ = 11547725252. Its totient is φ = 11547725250.

The previous prime is 11547725237. The next prime is 11547725297. The reversal of 11547725251 is 15252774511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11547725251 - 2⁹ = 11547724739 is a prime.

It is not a weakly prime, because it can be changed into another prime (11547725051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5773862625 + 5773862626.

It is an arithmetic number, because the mean of its divisors is an integer number (5773862626).

Almost surely, 2^11547725251 is an apocalyptic number.

11547725251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11547725251 is an equidigital number, since it uses as much as digits as its factorization.

11547725251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98000, while the sum is 40.

The spelling of 11547725251 in words is "eleven billion, five hundred forty-seven million, seven hundred twenty-five thousand, two hundred fifty-one".