25528265 has 24 divisors (see below), whose sum is σ = 36874440. Its totient is φ = 16896768.

The previous prime is 25528259. The next prime is 25528301. The reversal of 25528265 is 56282552.

It can be written as a sum of positive squares in 4 ways, for example, as 1449616 + 24078649 = 1204^2 + 4907^2 .

It is not a de Polignac number, because 25528265 - 2⁴ = 25528249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5309 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (1536435).

Almost surely, 2^25528265 is an apocalyptic number.

It is an amenable number.

25528265 is a deficient number, since it is larger than the sum of its proper divisors (11346175).

25528265 is a wasteful number, since it uses less digits than its factorization.

25528265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641 (or 3634 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

The square root of 25528265 is about 5052.5503461123. The cubic root of 25528265 is about 294.4469769438.

The spelling of 25528265 in words is "twenty-five million, five hundred twenty-eight thousand, two hundred sixty-five".