25130224 has 40 divisors (see below), whose sum is σ = 56603520. Its totient is φ = 10584768.

The previous prime is 25130219. The next prime is 25130239. The reversal of 25130224 is 42203152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4707 + ... + 8509.

It is an arithmetic number, because the mean of its divisors is an integer number (1415088).

Almost surely, 2^25130224 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 25130224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28301760).

25130224 is an abundant number, since it is smaller than the sum of its proper divisors (31473296).

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

25130224 is a wasteful number, since it uses less digits than its factorization.

25130224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877 (or 3871 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25130224 is about 5013.0054857341. The cubic root of 25130224 is about 292.9085978765.

Adding to 25130224 its reverse (42203152), we get a palindrome (67333376).

The spelling of 25130224 in words is "twenty-five million, one hundred thirty thousand, two hundred twenty-four".