25384320 has 256 divisors, whose sum is σ = 97675200. Its totient is φ = 6193152.

The previous prime is 25384291. The next prime is 25384369. The reversal of 25384320 is 2348352.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224584 + ... + 224696.

Almost surely, 2^25384320 is an apocalyptic number.

25384320 is a gapful number since it is divisible by the number (20) 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 25384320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48837600).

25384320 is an abundant number, since it is smaller than the sum of its proper divisors (72290880).

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

25384320 is a wasteful number, since it uses less digits than its factorization.

25384320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 25384320 is about 5038.2854226413. The cubic root of 25384320 is about 293.8925054748.

The spelling of 25384320 in words is "twenty-five million, three hundred eighty-four thousand, three hundred twenty".