25838385 has 32 divisors (see below), whose sum is σ = 46085760. Its totient is φ = 12284928.

The previous prime is 25838383. The next prime is 25838389. The reversal of 25838385 is 58383852.

It is not a de Polignac number, because 25838385 - 2¹ = 25838383 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25838381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2179 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (1440180).

Almost surely, 2^25838385 is an apocalyptic number.

It is an amenable number.

25838385 is a deficient number, since it is larger than the sum of its proper divisors (20247375).

25838385 is a wasteful number, since it uses less digits than its factorization.

25838385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377.

The product of its digits is 230400, while the sum is 42.

The square root of 25838385 is about 5083.1471550605. The cubic root of 25838385 is about 295.6345052048.

The spelling of 25838385 in words is "twenty-five million, eight hundred thirty-eight thousand, three hundred eighty-five".