25344324416 has 14 divisors (see below), whose sum is σ = 50292643890. Its totient is φ = 12672162176.

The previous prime is 25344324367. The next prime is 25344324419. The reversal of 25344324416 is 61442344352.

It can be written as a sum of positive squares in only one way, i.e., 24996874816 + 347449600 = 158104^2 + 18640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25344324416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25344324419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198002471 + ... + 198002598.

Almost surely, 2^25344324416 is an apocalyptic number.

It is an amenable number.

25344324416 is a deficient number, since it is larger than the sum of its proper divisors (24948319474).

25344324416 is an equidigital number, since it uses as much as digits as its factorization.

25344324416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396005081 (or 396005071 counting only the distinct ones).

The product of its digits is 276480, while the sum is 38.

Adding to 25344324416 its reverse (61442344352), we get a palindrome (86786668768).

The spelling of 25344324416 in words is "twenty-five billion, three hundred forty-four million, three hundred twenty-four thousand, four hundred sixteen".