25554738474842 has 8 divisors (see below), whose sum is σ = 40349587065600. Its totient is φ = 12104876119644.

The previous prime is 25554738474833. The next prime is 25554738474883. The reversal of 25554738474842 is 24847483745552.

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

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, 336246558842 + ... + 336246558917.

It is an arithmetic number, because the mean of its divisors is an integer number (5043698383200).

Almost surely, 2^{25554738474842} is an apocalyptic number.

25554738474842 is a deficient number, since it is larger than the sum of its proper divisors (14794848590758).

25554738474842 is a wasteful number, since it uses less digits than its factorization.

25554738474842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672493117780.

The product of its digits is 1204224000, while the sum is 68.

The spelling of 25554738474842 in words is "twenty-five trillion, five hundred fifty-four billion, seven hundred thirty-eight million, four hundred seventy-four thousand, eight hundred forty-two".