25300981617 has 16 divisors (see below), whose sum is σ = 35383774848. Its totient is φ = 16050355200.

The previous prime is 25300981577. The next prime is 25300981619. The reversal of 25300981617 is 71618900352.

It is not a de Polignac number, because 25300981617 - 2⁶ = 25300981553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25300981619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936634 + ... + 963267.

It is an arithmetic number, because the mean of its divisors is an integer number (2211485928).

Almost surely, 2^25300981617 is an apocalyptic number.

It is an amenable number.

25300981617 is a deficient number, since it is larger than the sum of its proper divisors (10082793231).

25300981617 is a wasteful number, since it uses less digits than its factorization.

25300981617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900120.

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 25300981617 in words is "twenty-five billion, three hundred million, nine hundred eighty-one thousand, six hundred seventeen".