25605025614123 has 4 divisors (see below), whose sum is σ = 34140034152168. Its totient is φ = 17070017076080.

The previous prime is 25605025614101. The next prime is 25605025614131. The reversal of 25605025614123 is 32141652050652.

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

It is a cyclic number.

It is not a de Polignac number, because 25605025614123 - 2¹² = 25605025610027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25605025614163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4267504269018 + ... + 4267504269023.

It is an arithmetic number, because the mean of its divisors is an integer number (8535008538042).

Almost surely, 2^{25605025614123} is an apocalyptic number.

25605025614123 is a deficient number, since it is larger than the sum of its proper divisors (8535008538045).

25605025614123 is an equidigital number, since it uses as much as digits as its factorization.

25605025614123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535008538044.

The product of its (nonzero) digits is 432000, while the sum is 42.

Adding to 25605025614123 its reverse (32141652050652), we get a palindrome (57746677664775).

The spelling of 25605025614123 in words is "twenty-five trillion, six hundred five billion, twenty-five million, six hundred fourteen thousand, one hundred twenty-three".