25189555253 has 2 divisors, whose sum is σ = 25189555254. Its totient is φ = 25189555252.

The previous prime is 25189555241. The next prime is 25189555301. The reversal of 25189555253 is 35255598152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22070667844 + 3118887409 = 148562^2 + 55847^2 .

It is a cyclic number.

It is not a de Polignac number, because 25189555253 - 2⁶ = 25189555189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25189555753) 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, 12594777626 + 12594777627.

It is an arithmetic number, because the mean of its divisors is an integer number (12594777627).

Almost surely, 2^25189555253 is an apocalyptic number.

It is an amenable number.

25189555253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25189555253 is an equidigital number, since it uses as much as digits as its factorization.

25189555253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700000, while the sum is 50.

The spelling of 25189555253 in words is "twenty-five billion, one hundred eighty-nine million, five hundred fifty-five thousand, two hundred fifty-three".