25005443125225 has 24 divisors (see below), whose sum is σ = 31021220292608. Its totient is φ = 19995020121600.

The previous prime is 25005443125153. The next prime is 25005443125343. The reversal of 25005443125225 is 52252134450052.

It is not a de Polignac number, because 25005443125225 - 2⁹ = 25005443124713 is a prime.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 1270527385 + ... + 1270547065.

Almost surely, 2^{25005443125225} is an apocalyptic number.

25005443125225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25005443125225 is a deficient number, since it is larger than the sum of its proper divisors (6015777167383).

25005443125225 is a wasteful number, since it uses less digits than its factorization.

25005443125225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40825 (or 40820 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 25005443125225 its reverse (52252134450052), we get a palindrome (77257577575277).

The spelling of 25005443125225 in words is "twenty-five trillion, five billion, four hundred forty-three million, one hundred twenty-five thousand, two hundred twenty-five".