25340913525761 has 2 divisors, whose sum is σ = 25340913525762. Its totient is φ = 25340913525760.

The previous prime is 25340913525757. The next prime is 25340913525791. The reversal of 25340913525761 is 16752531904352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25275303777025 + 65609748736 = 5027455^2 + 256144^2 .

It is a cyclic number.

It is not a de Polignac number, because 25340913525761 - 2² = 25340913525757 is a prime.

It is not a weakly prime, because it can be changed into another prime (25340913525701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12670456762880 + 12670456762881.

It is an arithmetic number, because the mean of its divisors is an integer number (12670456762881).

Almost surely, 2^{25340913525761} is an apocalyptic number.

It is an amenable number.

25340913525761 is a deficient number, since it is larger than the sum of its proper divisors (1).

25340913525761 is an equidigital number, since it uses as much as digits as its factorization.

25340913525761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 25340913525761 in words is "twenty-five trillion, three hundred forty billion, nine hundred thirteen million, five hundred twenty-five thousand, seven hundred sixty-one".