25530528 has 48 divisors (see below), whose sum is σ = 70549920. Its totient is φ = 8061696.

The previous prime is 25530517. The next prime is 25530553. The reversal of 25530528 is 82503552.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 25530495 and 25530504.

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, 5175 + ... + 8822.

It is an arithmetic number, because the mean of its divisors is an integer number (1469790).

Almost surely, 2^25530528 is an apocalyptic number.

It is an amenable number.

25530528 is an abundant number, since it is smaller than the sum of its proper divisors (45019392).

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

25530528 is a wasteful number, since it uses less digits than its factorization.

25530528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029 (or 14021 counting only the distinct ones).

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

The square root of 25530528 is about 5052.7742874583. The cubic root of 25530528 is about 294.4556772846.

The spelling of 25530528 in words is "twenty-five million, five hundred thirty thousand, five hundred twenty-eight".