25525305505555 has 16 divisors (see below), whose sum is σ = 30657154014144. Its totient is φ = 20402388040320.

The previous prime is 25525305505541. The next prime is 25525305505559. The reversal of 25525305505555 is 55550550352552.

It is not a de Polignac number, because 25525305505555 - 2⁵ = 25525305505523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25525305505559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116938177 + ... + 117156253.

It is an arithmetic number, because the mean of its divisors is an integer number (1916072125884).

Almost surely, 2^{25525305505555} is an apocalyptic number.

25525305505555 is a deficient number, since it is larger than the sum of its proper divisors (5131848508589).

25525305505555 is a wasteful number, since it uses less digits than its factorization.

25525305505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238446.

The product of its (nonzero) digits is 23437500, while the sum is 52.

The spelling of 25525305505555 in words is "twenty-five trillion, five hundred twenty-five billion, three hundred five million, five hundred five thousand, five hundred fifty-five".