27125514601 has 2 divisors, whose sum is σ = 27125514602. Its totient is φ = 27125514600.

The previous prime is 27125514589. The next prime is 27125514649. The reversal of 27125514601 is 10641552172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25248892201 + 1876622400 = 158899^2 + 43320^2 .

It is a cyclic number.

It is not a de Polignac number, because 27125514601 - 2⁹ = 27125514089 is a prime.

It is not a weakly prime, because it can be changed into another prime (27125515601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13562757300 + 13562757301.

It is an arithmetic number, because the mean of its divisors is an integer number (13562757301).

Almost surely, 2^27125514601 is an apocalyptic number.

It is an amenable number.

27125514601 is a deficient number, since it is larger than the sum of its proper divisors (1).

27125514601 is an equidigital number, since it uses as much as digits as its factorization.

27125514601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 27125514601 in words is "twenty-seven billion, one hundred twenty-five million, five hundred fourteen thousand, six hundred one".