25847898513 has 8 divisors (see below), whose sum is σ = 34798465728. Its totient is φ = 17064631824.

The previous prime is 25847898491. The next prime is 25847898533. The reversal of 25847898513 is 31589874852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25847898513 - 2⁶ = 25847898449 is a prime.

It is a super-2 number, since 2×25847898513² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25847898533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41824770 + ... + 41825387.

It is an arithmetic number, because the mean of its divisors is an integer number (4349808216).

Almost surely, 2^25847898513 is an apocalyptic number.

It is an amenable number.

25847898513 is a deficient number, since it is larger than the sum of its proper divisors (8950567215).

25847898513 is a wasteful number, since it uses less digits than its factorization.

25847898513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83650263.

The product of its digits is 19353600, while the sum is 60.

It can be divided in two parts, 2584 and 7898513, that added together give a palindrome (7901097).

The spelling of 25847898513 in words is "twenty-five billion, eight hundred forty-seven million, eight hundred ninety-eight thousand, five hundred thirteen".