25803280055 has 32 divisors (see below), whose sum is σ = 35884062720. Its totient is φ = 17446429440.

The previous prime is 25803279989. The next prime is 25803280057. The reversal of 25803280055 is 55008230852.

It is not a de Polignac number, because 25803280055 - 2¹² = 25803275959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25803280057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1131920 + ... + 1154490.

It is an arithmetic number, because the mean of its divisors is an integer number (1121376960).

Almost surely, 2^25803280055 is an apocalyptic number.

25803280055 is a deficient number, since it is larger than the sum of its proper divisors (10080782665).

25803280055 is a wasteful number, since it uses less digits than its factorization.

25803280055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23039.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 25803280055 in words is "twenty-five billion, eight hundred three million, two hundred eighty thousand, fifty-five".