12527372549 has 2 divisors, whose sum is σ = 12527372550. Its totient is φ = 12527372548.

The previous prime is 12527372519. The next prime is 12527372551. The reversal of 12527372549 is 94527372521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6708429025 + 5818943524 = 81905^2 + 76282^2 .

It is an emirp because it is prime and its reverse (94527372521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12527372549 - 2⁸ = 12527372293 is a prime.

It is a Sophie Germain prime.

Together with 12527372551, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12527372519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6263686274 + 6263686275.

It is an arithmetic number, because the mean of its divisors is an integer number (6263686275).

Almost surely, 2^12527372549 is an apocalyptic number.

It is an amenable number.

12527372549 is a deficient number, since it is larger than the sum of its proper divisors (1).

12527372549 is an equidigital number, since it uses as much as digits as its factorization.

12527372549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 47.

The spelling of 12527372549 in words is "twelve billion, five hundred twenty-seven million, three hundred seventy-two thousand, five hundred forty-nine".