25975135461 has 24 divisors (see below), whose sum is σ = 38077325440. Its totient is φ = 15738750720.

The previous prime is 25975135421. The next prime is 25975135469. The reversal of 25975135461 is 16453157952.

It is not a de Polignac number, because 25975135461 - 2¹¹ = 25975133413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25975135461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25975135469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2678820 + ... + 2688498.

Almost surely, 2^25975135461 is an apocalyptic number.

It is an amenable number.

25975135461 is a deficient number, since it is larger than the sum of its proper divisors (12102189979).

25975135461 is a wasteful number, since it uses less digits than its factorization.

25975135461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17097 (or 17086 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 48.

The spelling of 25975135461 in words is "twenty-five billion, nine hundred seventy-five million, one hundred thirty-five thousand, four hundred sixty-one".