25269240198 has 16 divisors (see below), whose sum is σ = 53511332400. Its totient is φ = 7927604736.

The previous prime is 25269240173. The next prime is 25269240239. The reversal of 25269240198 is 89104296252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123868723 + ... + 123868926.

It is an arithmetic number, because the mean of its divisors is an integer number (3344458275).

Almost surely, 2^25269240198 is an apocalyptic number.

25269240198 is an abundant number, since it is smaller than the sum of its proper divisors (28242092202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25269240198 is a wasteful number, since it uses less digits than its factorization.

25269240198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247737671.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 25269240198 in words is "twenty-five billion, two hundred sixty-nine million, two hundred forty thousand, one hundred ninety-eight".