25513413310889 has 4 divisors (see below), whose sum is σ = 29158186641024. Its totient is φ = 21868639980756.

The previous prime is 25513413310873. The next prime is 25513413310921. The reversal of 25513413310889 is 98801331431552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25513413310889 - 2⁴ = 25513413310873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25513413310889.

It is not an unprimeable number, because it can be changed into a prime (25513413310829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822386665057 + ... + 1822386665070.

It is an arithmetic number, because the mean of its divisors is an integer number (7289546660256).

Almost surely, 2^{25513413310889} is an apocalyptic number.

It is an amenable number.

25513413310889 is a deficient number, since it is larger than the sum of its proper divisors (3644773330135).

25513413310889 is an equidigital number, since it uses as much as digits as its factorization.

25513413310889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644773330134.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 25513413310889 in words is "twenty-five trillion, five hundred thirteen billion, four hundred thirteen million, three hundred ten thousand, eight hundred eighty-nine".