25538385 has 16 divisors (see below), whose sum is σ = 41060160. Its totient is φ = 13554240.

The previous prime is 25538377. The next prime is 25538411. The reversal of 25538385 is 58383552.

It is not a de Polignac number, because 25538385 - 2³ = 25538377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870 + ... + 7199.

It is an arithmetic number, because the mean of its divisors is an integer number (2566260).

Almost surely, 2^25538385 is an apocalyptic number.

It is an amenable number.

25538385 is a deficient number, since it is larger than the sum of its proper divisors (15521775).

25538385 is a wasteful number, since it uses less digits than its factorization.

25538385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8288.

The product of its digits is 144000, while the sum is 39.

The square root of 25538385 is about 5053.5517213144. The cubic root of 25538385 is about 294.4858803546.

The spelling of 25538385 in words is "twenty-five million, five hundred thirty-eight thousand, three hundred eighty-five".