25455016194 has 8 divisors (see below), whose sum is σ = 50910032400. Its totient is φ = 8485005396.

The previous prime is 25455016189. The next prime is 25455016201. The reversal of 25455016194 is 49161055452.

It is a happy number.

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

25455016194 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121251344 + ... + 2121251355.

It is an arithmetic number, because the mean of its divisors is an integer number (6363754050).

Almost surely, 2^25455016194 is an apocalyptic number.

25455016194 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25455016194 is a wasteful number, since it uses less digits than its factorization.

25455016194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242502704.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 25455016194 in words is "twenty-five billion, four hundred fifty-five million, sixteen thousand, one hundred ninety-four".