25305795908291 has 2 divisors, whose sum is σ = 25305795908292. Its totient is φ = 25305795908290.

The previous prime is 25305795908279. The next prime is 25305795908293. The reversal of 25305795908291 is 19280959750352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25305795908291 - 2⁴² = 20907749397187 is a prime.

Together with 25305795908293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25305795908293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12652897954145 + 12652897954146.

It is an arithmetic number, because the mean of its divisors is an integer number (12652897954146).

Almost surely, 2^{25305795908291} is an apocalyptic number.

25305795908291 is a deficient number, since it is larger than the sum of its proper divisors (1).

25305795908291 is an equidigital number, since it uses as much as digits as its factorization.

25305795908291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236000, while the sum is 65.

The spelling of 25305795908291 in words is "twenty-five trillion, three hundred five billion, seven hundred ninety-five million, nine hundred eight thousand, two hundred ninety-one".