25115005734641 has 16 divisors (see below), whose sum is σ = 26610974945280. Its totient is φ = 23669599452240.

The previous prime is 25115005734589. The next prime is 25115005734647. The reversal of 25115005734641 is 14643750051152.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25115005734641 - 2¹⁸ = 25115005472497 is a prime.

It is a super-2 number, since 2×25115005734641² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25115005734592 and 25115005734601.

It is not an unprimeable number, because it can be changed into a prime (25115005734647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63970421 + ... + 64361826.

It is an arithmetic number, because the mean of its divisors is an integer number (1663185934080).

Almost surely, 2^{25115005734641} is an apocalyptic number.

It is an amenable number.

25115005734641 is a deficient number, since it is larger than the sum of its proper divisors (1495969210639).

25115005734641 is a wasteful number, since it uses less digits than its factorization.

25115005734641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128332444.

The product of its (nonzero) digits is 504000, while the sum is 44.

Adding to 25115005734641 its reverse (14643750051152), we get a palindrome (39758755785793).

The spelling of 25115005734641 in words is "twenty-five trillion, one hundred fifteen billion, five million, seven hundred thirty-four thousand, six hundred forty-one".