25453225444425 has 24 divisors (see below), whose sum is σ = 42516507998496. Its totient is φ = 13435104560640.

The previous prime is 25453225444403. The next prime is 25453225444433. The reversal of 25453225444425 is 52444452235452.

It is not a de Polignac number, because 25453225444425 - 2⁹ = 25453225443913 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 1749355299 + ... + 1749369848.

It is an arithmetic number, because the mean of its divisors is an integer number (1771521166604).

Almost surely, 2^{25453225444425} is an apocalyptic number.

25453225444425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25453225444425 is a deficient number, since it is larger than the sum of its proper divisors (17063282554071).

25453225444425 is a wasteful number, since it uses less digits than its factorization.

25453225444425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3498725257 (or 3498725252 counting only the distinct ones).

The product of its digits is 30720000, while the sum is 51.

Adding to 25453225444425 its reverse (52444452235452), we get a palindrome (77897677679877).

The spelling of 25453225444425 in words is "twenty-five trillion, four hundred fifty-three billion, two hundred twenty-five million, four hundred forty-four thousand, four hundred twenty-five".