25244000 has 48 divisors (see below), whose sum is σ = 62034336. Its totient is φ = 10096000.

The previous prime is 25243993. The next prime is 25244003. The reversal of 25244000 is 44252.

It is a self number, because there is not a number n which added to its sum of digits gives 25244000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25244003) 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, 845 + ... + 7155.

It is an arithmetic number, because the mean of its divisors is an integer number (1292382).

Almost surely, 2^25244000 is an apocalyptic number.

25244000 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 25244000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31017168).

25244000 is an abundant number, since it is smaller than the sum of its proper divisors (36790336).

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

25244000 is an equidigital number, since it uses as much as digits as its factorization.

25244000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 25244000 is about 5024.3407527754. The cubic root of 25244000 is about 293.3499760989.

Adding to 25244000 its reverse (44252), we get a palindrome (25288252).

The spelling of 25244000 in words is "twenty-five million, two hundred forty-four thousand".