25016896459 has 4 divisors (see below), whose sum is σ = 26333575240. Its totient is φ = 23700217680.

The previous prime is 25016896451. The next prime is 25016896493. The reversal of 25016896459 is 95469861052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25016896459 - 2³ = 25016896451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25016896451) 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, 658339362 + ... + 658339399.

It is an arithmetic number, because the mean of its divisors is an integer number (6583393810).

Almost surely, 2^25016896459 is an apocalyptic number.

25016896459 is a deficient number, since it is larger than the sum of its proper divisors (1316678781).

25016896459 is a wasteful number, since it uses less digits than its factorization.

25016896459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316678780.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 25016896459 in words is "twenty-five billion, sixteen million, eight hundred ninety-six thousand, four hundred fifty-nine".