25111211153 has 12 divisors (see below), whose sum is σ = 29500224372. Its totient is φ = 21310783200.

The previous prime is 25111211149. The next prime is 25111211227. The reversal of 25111211153 is 35111211152.

It can be written as a sum of positive squares in 2 ways, for example, as 21364791889 + 3746419264 = 146167^2 + 61208^2 .

It is not a de Polignac number, because 25111211153 - 2² = 25111211149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25111211353) 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 11 ways as a sum of consecutive naturals, for example, 2532050 + ... + 2541947.

It is an arithmetic number, because the mean of its divisors is an integer number (2458352031).

Almost surely, 2^25111211153 is an apocalyptic number.

It is an amenable number.

25111211153 is a deficient number, since it is larger than the sum of its proper divisors (4389013219).

25111211153 is a wasteful number, since it uses less digits than its factorization.

25111211153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074112 (or 5074105 counting only the distinct ones).

The product of its digits is 300, while the sum is 23.

Subtracting 25111211153 from its reverse (35111211152), we obtain a palindrome (9999999999).

The spelling of 25111211153 in words is "twenty-five billion, one hundred eleven million, two hundred eleven thousand, one hundred fifty-three".