25630111139161 has 3 divisors (see below), whose sum is σ = 25630116201781. Its totient is φ = 25630106076542.

The previous prime is 25630111139159. The next prime is 25630111139177. The reversal of 25630111139161 is 16193111103652.

The square root of 25630111139161 is 5062619.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 25630111139161 - 2¹ = 25630111139159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25630111131161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2531310 + ... + 7593928.

Almost surely, 2^{25630111139161} is an apocalyptic number.

25630111139161 is the 5062619-th square number.

25630111139161 is the 2531310-th centered octagonal number.

It is an amenable number.

25630111139161 is a deficient number, since it is larger than the sum of its proper divisors (5062620).

25630111139161 is an frugal number, since it uses more digits than its factorization.

25630111139161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10125238 (or 5062619 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 40.

The spelling of 25630111139161 in words is "twenty-five trillion, six hundred thirty billion, one hundred eleven million, one hundred thirty-nine thousand, one hundred sixty-one".