12500046025549 has 2 divisors, whose sum is σ = 12500046025550. Its totient is φ = 12500046025548.

The previous prime is 12500046025469. The next prime is 12500046025559. The reversal of 12500046025549 is 94552064000521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11669910015625 + 830136009924 = 3416125^2 + 911118^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500046025549 - 2⁹ = 12500046025037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500046025559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250023012774 + 6250023012775.

It is an arithmetic number, because the mean of its divisors is an integer number (6250023012775).

Almost surely, 2^{12500046025549} is an apocalyptic number.

It is an amenable number.

12500046025549 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500046025549 is an equidigital number, since it uses as much as digits as its factorization.

12500046025549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 12500046025549 in words is "twelve trillion, five hundred billion, forty-six million, twenty-five thousand, five hundred forty-nine".