25125345444 has 12 divisors (see below), whose sum is σ = 58625806064. Its totient is φ = 8375115144.

The previous prime is 25125345431. The next prime is 25125345451. The reversal of 25125345444 is 44454352152.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1046889382 + ... + 1046889405.

Almost surely, 2^25125345444 is an apocalyptic number.

It is an amenable number.

25125345444 is an abundant number, since it is smaller than the sum of its proper divisors (33500460620).

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

25125345444 is a wasteful number, since it uses less digits than its factorization.

25125345444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093778794 (or 2093778792 counting only the distinct ones).

The product of its digits is 384000, while the sum is 39.

Adding to 25125345444 its reverse (44454352152), we get a palindrome (69579697596).

The spelling of 25125345444 in words is "twenty-five billion, one hundred twenty-five million, three hundred forty-five thousand, four hundred forty-four".