25867392 has 128 divisors (see below), whose sum is σ = 74027520. Its totient is φ = 7987200.

The previous prime is 25867367. The next prime is 25867397. The reversal of 25867392 is 29376852.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25867397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488038 + ... + 488090.

It is an arithmetic number, because the mean of its divisors is an integer number (578340).

Almost surely, 2^25867392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25867392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37013760).

25867392 is an abundant number, since it is smaller than the sum of its proper divisors (48160128).

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

25867392 is a wasteful number, since it uses less digits than its factorization.

25867392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 130 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 25867392 is about 5085.9996067636. Note that the first 3 decimals coincide. The cubic root of 25867392 is about 295.7450934253.

The spelling of 25867392 in words is "twenty-five million, eight hundred sixty-seven thousand, three hundred ninety-two".