25336320 has 80 divisors (see below), whose sum is σ = 81021600. Its totient is φ = 6754304.

The previous prime is 25336313. The next prime is 25336349. The reversal of 25336320 is 2363352.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×25336320² = 1283858222284800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6031 + ... + 9329.

It is an arithmetic number, because the mean of its divisors is an integer number (1012770).

Almost surely, 2^25336320 is an apocalyptic number.

25336320 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 25336320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40510800).

25336320 is an abundant number, since it is smaller than the sum of its proper divisors (55685280).

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

25336320 is an equidigital number, since it uses as much as digits as its factorization.

25336320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 25336320 is about 5033.5196433510. The cubic root of 25336320 is about 293.7071450988.

Adding to 25336320 its reverse (2363352), we get a palindrome (27699672).

The spelling of 25336320 in words is "twenty-five million, three hundred thirty-six thousand, three hundred twenty".