25800080555 has 8 divisors (see below), whose sum is σ = 30962014512. Its totient is φ = 20638785888.

The previous prime is 25800080533. The next prime is 25800080587. The reversal of 25800080555 is 55508000852.

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

It is a cyclic number.

It is not a de Polignac number, because 25800080555 - 2²⁴ = 25783303339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66029 + ... + 236558.

It is an arithmetic number, because the mean of its divisors is an integer number (3870251814).

Almost surely, 2^25800080555 is an apocalyptic number.

25800080555 is a deficient number, since it is larger than the sum of its proper divisors (5161933957).

25800080555 is a wasteful number, since it uses less digits than its factorization.

25800080555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319645.

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 25800080555 in words is "twenty-five billion, eight hundred million, eighty thousand, five hundred fifty-five".