25375394099 has 8 divisors (see below), whose sum is σ = 27684426240. Its totient is φ = 23066725000.

The previous prime is 25375394071. The next prime is 25375394111. The reversal of 25375394099 is 99049357352.

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

It is not a de Polignac number, because 25375394099 - 2²⁴ = 25358616883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25375391099) 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, 67382 + ... + 235140.

It is an arithmetic number, because the mean of its divisors is an integer number (3460553280).

Almost surely, 2^25375394099 is an apocalyptic number.

25375394099 is a deficient number, since it is larger than the sum of its proper divisors (2309032141).

25375394099 is a wasteful number, since it uses less digits than its factorization.

25375394099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181521.

The product of its (nonzero) digits is 9185400, while the sum is 56.

The spelling of 25375394099 in words is "twenty-five billion, three hundred seventy-five million, three hundred ninety-four thousand, ninety-nine".