25554445552 has 20 divisors (see below), whose sum is σ = 49571633016. Its totient is φ = 12761766080.

The previous prime is 25554445549. The next prime is 25554445559.

25554445552 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25554445559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952399 + ... + 978862.

Almost surely, 2^25554445552 is an apocalyptic number.

It is an amenable number.

25554445552 is a deficient number, since it is larger than the sum of its proper divisors (24017187464).

25554445552 is a wasteful number, since it uses less digits than its factorization.

25554445552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932096 (or 1932090 counting only the distinct ones).

The product of its digits is 4000000, while the sum is 46.

The spelling of 25554445552 in words is "twenty-five billion, five hundred fifty-four million, four hundred forty-five thousand, five hundred fifty-two".