25115322345 has 16 divisors (see below), whose sum is σ = 40188435072. Its totient is φ = 13393532160.

The previous prime is 25115322301. The next prime is 25115322361. The reversal of 25115322345 is 54322351152.

It is not a de Polignac number, because 25115322345 - 2¹⁰ = 25115321321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88740 + ... + 241050.

It is an arithmetic number, because the mean of its divisors is an integer number (2511777192).

Almost surely, 2^25115322345 is an apocalyptic number.

It is an amenable number.

25115322345 is a deficient number, since it is larger than the sum of its proper divisors (15073112727).

25115322345 is a wasteful number, since it uses less digits than its factorization.

25115322345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163312.

The product of its digits is 36000, while the sum is 33.

Adding to 25115322345 its reverse (54322351152), we get a palindrome (79437673497).

The spelling of 25115322345 in words is "twenty-five billion, one hundred fifteen million, three hundred twenty-two thousand, three hundred forty-five".