25318343239 has 16 divisors (see below), whose sum is σ = 31281356800. Its totient is φ = 20003596704.

The previous prime is 25318343209. The next prime is 25318343257. The reversal of 25318343239 is 93234381352.

It is not a de Polignac number, because 25318343239 - 2⁵ = 25318343207 is a prime.

It is a super-2 number, since 2×25318343239² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25318343195 and 25318343204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25318343209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2567559 + ... + 2577400.

It is an arithmetic number, because the mean of its divisors is an integer number (1955084800).

Almost surely, 2^25318343239 is an apocalyptic number.

25318343239 is a deficient number, since it is larger than the sum of its proper divisors (5963013561).

25318343239 is a wasteful number, since it uses less digits than its factorization.

25318343239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145022.

The product of its digits is 466560, while the sum is 43.

The spelling of 25318343239 in words is "twenty-five billion, three hundred eighteen million, three hundred forty-three thousand, two hundred thirty-nine".