25552025489 has 2 divisors, whose sum is σ = 25552025490. Its totient is φ = 25552025488.

The previous prime is 25552025479. The next prime is 25552025537. The reversal of 25552025489 is 98452025552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14271886225 + 11280139264 = 119465^2 + 106208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25552025489 is a prime.

It is not a weakly prime, because it can be changed into another prime (25552025459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12776012744 + 12776012745.

It is an arithmetic number, because the mean of its divisors is an integer number (12776012745).

Almost surely, 2^25552025489 is an apocalyptic number.

It is an amenable number.

25552025489 is a deficient number, since it is larger than the sum of its proper divisors (1).

25552025489 is an equidigital number, since it uses as much as digits as its factorization.

25552025489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 25552025489 in words is "twenty-five billion, five hundred fifty-two million, twenty-five thousand, four hundred eighty-nine".