25752244 has 36 divisors (see below), whose sum is σ = 53089344. Its totient is φ = 10896816.

The previous prime is 25752241. The next prime is 25752247. The reversal of 25752244 is 44225752.

It is an interprime number because it is at equal distance from previous prime (25752241) and next prime (25752247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25752241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15477 + ... + 17059.

It is an arithmetic number, because the mean of its divisors is an integer number (1474704).

Almost surely, 2^25752244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25752244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26544672).

25752244 is an abundant number, since it is smaller than the sum of its proper divisors (27337100).

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

25752244 is a wasteful number, since it uses less digits than its factorization.

25752244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1675 counting only the distinct ones).

The product of its digits is 22400, while the sum is 31.

The square root of 25752244 is about 5074.6668856192. Note that the first 3 decimals coincide. The cubic root of 25752244 is about 295.3056068807.

Adding to 25752244 its reverse (44225752), we get a palindrome (69977996).

It can be divided in two parts, 2575 and 2244, that multiplied together give a triangular number (5778300 = T₃₃₉₉).

The spelling of 25752244 in words is "twenty-five million, seven hundred fifty-two thousand, two hundred forty-four".