25704245040 has 40 divisors (see below), whose sum is σ = 79683160368. Its totient is φ = 6854465280.

The previous prime is 25704245011. The next prime is 25704245117. The reversal of 25704245040 is 4054240752.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 25704244992 and 25704245010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53550271 + ... + 53550750.

Almost surely, 2^25704245040 is an apocalyptic number.

25704245040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25704245040 is an abundant number, since it is smaller than the sum of its proper divisors (53978915328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25704245040 is a wasteful number, since it uses less digits than its factorization.

25704245040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107101037 (or 107101031 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 33.

Adding to 25704245040 its reverse (4054240752), we get a palindrome (29758485792).

The spelling of 25704245040 in words is "twenty-five billion, seven hundred four million, two hundred forty-five thousand, forty".