25503005028 has 12 divisors (see below), whose sum is σ = 59507011760. Its totient is φ = 8501001672.

The previous prime is 25503004991. The next prime is 25503005029. The reversal of 25503005028 is 82050030552.

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

It is a junction number, because it is equal to n+sod(n) for n = 25503004986 and 25503005004.

It is not an unprimeable number, because it can be changed into a prime (25503005029) 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 3 ways as a sum of consecutive naturals, for example, 1062625198 + ... + 1062625221.

Almost surely, 2^25503005028 is an apocalyptic number.

It is an amenable number.

25503005028 is an abundant number, since it is smaller than the sum of its proper divisors (34004006732).

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

25503005028 is a wasteful number, since it uses less digits than its factorization.

25503005028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125250426 (or 2125250424 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 25503005028 in words is "twenty-five billion, five hundred three million, five thousand, twenty-eight".