25456407241 has 2 divisors, whose sum is σ = 25456407242. Its totient is φ = 25456407240.

The previous prime is 25456407239. The next prime is 25456407247. The reversal of 25456407241 is 14270465452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25335407241 + 121000000 = 159171^2 + 11000^2 .

It is a cyclic number.

It is not a de Polignac number, because 25456407241 - 2¹ = 25456407239 is a prime.

Together with 25456407239, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25456407194 and 25456407203.

It is not a weakly prime, because it can be changed into another prime (25456407247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12728203620 + 12728203621.

It is an arithmetic number, because the mean of its divisors is an integer number (12728203621).

Almost surely, 2^25456407241 is an apocalyptic number.

It is an amenable number.

25456407241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25456407241 is an equidigital number, since it uses as much as digits as its factorization.

25456407241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 25456407241 in words is "twenty-five billion, four hundred fifty-six million, four hundred seven thousand, two hundred forty-one".