25475051000447 has 8 divisors (see below), whose sum is σ = 26975674782000. Its totient is φ = 23974659593344.

The previous prime is 25475051000389. The next prime is 25475051000453. The reversal of 25475051000447 is 74400015057452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25475051000447 - 2⁶ = 25475051000383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25475051000398 and 25475051000407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25475051000947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57867872 + ... + 58306437.

It is an arithmetic number, because the mean of its divisors is an integer number (3371959347750).

Almost surely, 2^{25475051000447} is an apocalyptic number.

25475051000447 is a deficient number, since it is larger than the sum of its proper divisors (1500623781553).

25475051000447 is a wasteful number, since it uses less digits than its factorization.

25475051000447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116187225.

The product of its (nonzero) digits is 784000, while the sum is 44.

Adding to 25475051000447 its reverse (74400015057452), we get a palindrome (99875066057899).

The spelling of 25475051000447 in words is "twenty-five trillion, four hundred seventy-five billion, fifty-one million, four hundred forty-seven", and thus it is an aban number.