25898674507 has 4 divisors (see below), whose sum is σ = 26028818800. Its totient is φ = 25768530216.

The previous prime is 25898674493. The next prime is 25898674519. The reversal of 25898674507 is 70547689852.

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 25898674507 - 2¹⁵ = 25898641739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25898674807) 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, 65071848 + ... + 65072245.

It is an arithmetic number, because the mean of its divisors is an integer number (6507204700).

Almost surely, 2^25898674507 is an apocalyptic number.

25898674507 is a deficient number, since it is larger than the sum of its proper divisors (130144293).

25898674507 is a wasteful number, since it uses less digits than its factorization.

25898674507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130144292.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 25898674507 in words is "twenty-five billion, eight hundred ninety-eight million, six hundred seventy-four thousand, five hundred seven".