25111434560441 has 4 divisors (see below), whose sum is σ = 25135102266084. Its totient is φ = 25087766854800.

The previous prime is 25111434560383. The next prime is 25111434560473. The reversal of 25111434560441 is 14406543411152.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21594980761600 + 3516453798841 = 4647040^2 + 1875221^2 .

It is a cyclic number.

It is not a de Polignac number, because 25111434560441 - 2³⁴ = 25094254691257 is a prime.

It is a super-2 number, since 2×25111434560441² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25111434560491) 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 3 ways as a sum of consecutive naturals, for example, 11833851230 + ... + 11833853351.

It is an arithmetic number, because the mean of its divisors is an integer number (6283775566521).

Almost surely, 2^{25111434560441} is an apocalyptic number.

It is an amenable number.

25111434560441 is a deficient number, since it is larger than the sum of its proper divisors (23667705643).

25111434560441 is a wasteful number, since it uses less digits than its factorization.

25111434560441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23667705642.

The product of its (nonzero) digits is 230400, while the sum is 41.

Adding to 25111434560441 its reverse (14406543411152), we get a palindrome (39517977971593).

The spelling of 25111434560441 in words is "twenty-five trillion, one hundred eleven billion, four hundred thirty-four million, five hundred sixty thousand, four hundred forty-one".