25404434340055 has 16 divisors (see below), whose sum is σ = 31310049641184. Its totient is φ = 19773756616320.

The previous prime is 25404434339959. The next prime is 25404434340071. The reversal of 25404434340055 is 55004343440452.

It is not a de Polignac number, because 25404434340055 - 2⁷ = 25404434339927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25404434339993 and 25404434340020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5578644 + ... + 9051526.

It is an arithmetic number, because the mean of its divisors is an integer number (1956878102574).

Almost surely, 2^{25404434340055} is an apocalyptic number.

25404434340055 is a deficient number, since it is larger than the sum of its proper divisors (5905615301129).

25404434340055 is a wasteful number, since it uses less digits than its factorization.

25404434340055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512466.

The product of its (nonzero) digits is 2304000, while the sum is 43.

The spelling of 25404434340055 in words is "twenty-five trillion, four hundred four billion, four hundred thirty-four million, three hundred forty thousand, fifty-five".