25361234000549 has 2 divisors, whose sum is σ = 25361234000550. Its totient is φ = 25361234000548.

The previous prime is 25361234000491. The next prime is 25361234000579. The reversal of 25361234000549 is 94500043216352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19642047844225 + 5719186156324 = 4431935^2 + 2391482^2 .

It is a cyclic number.

It is not a de Polignac number, because 25361234000549 - 2¹⁶ = 25361233935013 is a prime.

It is a Sophie Germain 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 (25361234000579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12680617000274 + 12680617000275.

It is an arithmetic number, because the mean of its divisors is an integer number (12680617000275).

Almost surely, 2^{25361234000549} is an apocalyptic number.

It is an amenable number.

25361234000549 is a deficient number, since it is larger than the sum of its proper divisors (1).

25361234000549 is an equidigital number, since it uses as much as digits as its factorization.

25361234000549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 25361234000549 in words is "twenty-five trillion, three hundred sixty-one billion, two hundred thirty-four million, five hundred forty-nine", and thus it is an aban number.