25040250 has 96 divisors (see below), whose sum is σ = 70087680. Its totient is φ = 6444000.

The previous prime is 25040203. The next prime is 25040263. The reversal of 25040250 is 5204052.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69571 + ... + 69929.

It is an arithmetic number, because the mean of its divisors is an integer number (730080).

Almost surely, 2^25040250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25040250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35043840).

25040250 is an abundant number, since it is smaller than the sum of its proper divisors (45047430).

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

25040250 is a wasteful number, since it uses less digits than its factorization.

25040250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25040250 is about 5004.0233812403. The cubic root of 25040250 is about 292.5586119669.

The spelling of 25040250 in words is "twenty-five million, forty thousand, two hundred fifty".