25244250 has 64 divisors (see below), whose sum is σ = 63842688. Its totient is φ = 6643200.

The previous prime is 25244237. The next prime is 25244257. The reversal of 25244250 is 5244252.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25244250.

It is not an unprimeable number, because it can be changed into a prime (25244257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72577 + ... + 72923.

It is an arithmetic number, because the mean of its divisors is an integer number (997542).

Almost surely, 2^25244250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25244250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31921344).

25244250 is an abundant number, since it is smaller than the sum of its proper divisors (38598438).

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

25244250 is a wasteful number, since it uses less digits than its factorization.

25244250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 25244250 is about 5024.3656315997. The cubic root of 25244250 is about 293.3509444775.

The spelling of 25244250 in words is "twenty-five million, two hundred forty-four thousand, two hundred fifty".