25561003165233 has 8 divisors (see below), whose sum is σ = 34089705195168. Its totient is φ = 17036484956064.

The previous prime is 25561003165183. The next prime is 25561003165237. The reversal of 25561003165233 is 33256130016552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25561003165233 - 2⁹ = 25561003164721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25561003165237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045940935 + ... + 1045965372.

It is an arithmetic number, because the mean of its divisors is an integer number (4261213149396).

Almost surely, 2^{25561003165233} is an apocalyptic number.

It is an amenable number.

25561003165233 is a deficient number, since it is larger than the sum of its proper divisors (8528702029935).

25561003165233 is a wasteful number, since it uses less digits than its factorization.

25561003165233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091910383.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 25561003165233 in words is "twenty-five trillion, five hundred sixty-one billion, three million, one hundred sixty-five thousand, two hundred thirty-three".