25005403245 has 24 divisors (see below), whose sum is σ = 42225199776. Its totient is φ = 12634306272.

The previous prime is 25005403237. The next prime is 25005403249. The reversal of 25005403245 is 54230450052.

It is not a de Polignac number, because 25005403245 - 2³ = 25005403237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25005403249) 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 in 23 ways as a sum of consecutive naturals, for example, 2303487 + ... + 2314316.

It is an arithmetic number, because the mean of its divisors is an integer number (1759383324).

Almost surely, 2^25005403245 is an apocalyptic number.

It is an amenable number.

25005403245 is a deficient number, since it is larger than the sum of its proper divisors (17219796531).

25005403245 is a wasteful number, since it uses less digits than its factorization.

25005403245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617849 (or 4617830 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 25005403245 its reverse (54230450052), we get a palindrome (79235853297).

The spelling of 25005403245 in words is "twenty-five billion, five million, four hundred three thousand, two hundred forty-five".