25500525028 has 24 divisors (see below), whose sum is σ = 51546517344. Its totient is φ = 10909315200.

The previous prime is 25500525013. The next prime is 25500525047. The reversal of 25500525028 is 82052500552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 25500524984 and 25500525002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17045058 + ... + 17046553.

It is an arithmetic number, because the mean of its divisors is an integer number (2147771556).

Almost surely, 2^25500525028 is an apocalyptic number.

It is an amenable number.

25500525028 is an abundant number, since it is smaller than the sum of its proper divisors (26045992316).

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

25500525028 is a wasteful number, since it uses less digits than its factorization.

25500525028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34091643 (or 34091641 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 25500525028 in words is "twenty-five billion, five hundred million, five hundred twenty-five thousand, twenty-eight".