25473907247 has 2 divisors, whose sum is σ = 25473907248. Its totient is φ = 25473907246.

The previous prime is 25473907243. The next prime is 25473907279. The reversal of 25473907247 is 74270937452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25473907247 - 2² = 25473907243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25473907195 and 25473907204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25473907243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12736953623 + 12736953624.

It is an arithmetic number, because the mean of its divisors is an integer number (12736953624).

Almost surely, 2^25473907247 is an apocalyptic number.

25473907247 is a deficient number, since it is larger than the sum of its proper divisors (1).

25473907247 is an equidigital number, since it uses as much as digits as its factorization.

25473907247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 25473907247 in words is "twenty-five billion, four hundred seventy-three million, nine hundred seven thousand, two hundred forty-seven".