25813552988203 has 2 divisors, whose sum is σ = 25813552988204. Its totient is φ = 25813552988202.

The previous prime is 25813552988131. The next prime is 25813552988207. The reversal of 25813552988203 is 30288925531852.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25813552988203 - 2³⁷ = 25676114034731 is a prime.

It is not a weakly prime, because it can be changed into another prime (25813552988207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12906776494101 + 12906776494102.

It is an arithmetic number, because the mean of its divisors is an integer number (12906776494102).

Almost surely, 2^{25813552988203} is an apocalyptic number.

25813552988203 is a deficient number, since it is larger than the sum of its proper divisors (1).

25813552988203 is an equidigital number, since it uses as much as digits as its factorization.

25813552988203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472000, while the sum is 61.

The spelling of 25813552988203 in words is "twenty-five trillion, eight hundred thirteen billion, five hundred fifty-two million, nine hundred eighty-eight thousand, two hundred three".