25404112440323 has 4 divisors (see below), whose sum is σ = 25404448980768. Its totient is φ = 25403775899880.

The previous prime is 25404112440319. The next prime is 25404112440331. The reversal of 25404112440323 is 32304421140452.

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 25404112440323 - 2² = 25404112440319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25404112440353) 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, 168156968 + ... + 168307973.

It is an arithmetic number, because the mean of its divisors is an integer number (6351112245192).

Almost surely, 2^{25404112440323} is an apocalyptic number.

25404112440323 is a deficient number, since it is larger than the sum of its proper divisors (336540445).

25404112440323 is an equidigital number, since it uses as much as digits as its factorization.

25404112440323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336540444.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 25404112440323 its reverse (32304421140452), we get a palindrome (57708533580775).

The spelling of 25404112440323 in words is "twenty-five trillion, four hundred four billion, one hundred twelve million, four hundred forty thousand, three hundred twenty-three".