25853828 has 72 divisors (see below), whose sum is σ = 61311936. Its totient is φ = 9282240.

The previous prime is 25853809. The next prime is 25853837. The reversal of 25853828 is 82835852.

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 23 ways as a sum of consecutive naturals, for example, 43751 + ... + 44337.

Almost surely, 2^25853828 is an apocalyptic number.

25853828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25853828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30655968).

25853828 is an abundant number, since it is smaller than the sum of its proper divisors (35458108).

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

25853828 is a wasteful number, since it uses less digits than its factorization.

25853828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 620 counting only the distinct ones).

The product of its digits is 153600, while the sum is 41.

The square root of 25853828 is about 5084.6659673965. The cubic root of 25853828 is about 295.6933914239.

The spelling of 25853828 in words is "twenty-five million, eight hundred fifty-three thousand, eight hundred twenty-eight".