25545057347 has 2 divisors, whose sum is σ = 25545057348. Its totient is φ = 25545057346.

The previous prime is 25545057337. The next prime is 25545057353. The reversal of 25545057347 is 74375054552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25545057347 - 2⁶ = 25545057283 is a prime.

It is not a weakly prime, because it can be changed into another prime (25545057337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12772528673 + 12772528674.

It is an arithmetic number, because the mean of its divisors is an integer number (12772528674).

Almost surely, 2^25545057347 is an apocalyptic number.

25545057347 is a deficient number, since it is larger than the sum of its proper divisors (1).

25545057347 is an equidigital number, since it uses as much as digits as its factorization.

25545057347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940000, while the sum is 47.

The spelling of 25545057347 in words is "twenty-five billion, five hundred forty-five million, fifty-seven thousand, three hundred forty-seven".