25528745 has 16 divisors (see below), whose sum is σ = 33625152. Its totient is φ = 18452160.

The previous prime is 25528739. The next prime is 25528753. The reversal of 25528745 is 54782552.

It is not a de Polignac number, because 25528745 - 2⁶ = 25528681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25528699 and 25528708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8174 + ... + 10856.

It is an arithmetic number, because the mean of its divisors is an integer number (2101572).

Almost surely, 2^25528745 is an apocalyptic number.

It is an amenable number.

25528745 is a deficient number, since it is larger than the sum of its proper divisors (8096407).

25528745 is a wasteful number, since it uses less digits than its factorization.

25528745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872.

The product of its digits is 112000, while the sum is 38.

The square root of 25528745 is about 5052.5978466527. The cubic root of 25528745 is about 294.4488223971.

The spelling of 25528745 in words is "twenty-five million, five hundred twenty-eight thousand, seven hundred forty-five".