25453280 has 48 divisors (see below), whose sum is σ = 60464880. Its totient is φ = 10125312.

The previous prime is 25453279. The next prime is 25453289. The reversal of 25453280 is 8235452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25453289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40811 + ... + 41429.

It is an arithmetic number, because the mean of its divisors is an integer number (1259685).

Almost surely, 2^25453280 is an apocalyptic number.

25453280 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 25453280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30232440).

25453280 is an abundant number, since it is smaller than the sum of its proper divisors (35011600).

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

25453280 is a wasteful number, since it uses less digits than its factorization.

25453280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 25453280 is about 5045.1243790416. The cubic root of 25453280 is about 294.1583979928.

The spelling of 25453280 in words is "twenty-five million, four hundred fifty-three thousand, two hundred eighty".