25000530528 has 24 divisors (see below), whose sum is σ = 65626392888. Its totient is φ = 8333510144.

The previous prime is 25000530521. The next prime is 25000530539. The reversal of 25000530528 is 82503500052.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 25000530495 and 25000530504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000530521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130211001 + ... + 130211192.

It is an arithmetic number, because the mean of its divisors is an integer number (2734433037).

Almost surely, 2^25000530528 is an apocalyptic number.

It is an amenable number.

25000530528 is an abundant number, since it is smaller than the sum of its proper divisors (40625862360).

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

25000530528 is a wasteful number, since it uses less digits than its factorization.

25000530528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260422206 (or 260422198 counting only the distinct ones).

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

The spelling of 25000530528 in words is "twenty-five billion, five hundred thirty thousand, five hundred twenty-eight".