25112224 has 48 divisors (see below), whose sum is σ = 52678080. Its totient is φ = 11750400.

The previous prime is 25112221. The next prime is 25112249. The reversal of 25112224 is 42221152.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (25112221) 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, 62424 + ... + 62824.

It is an arithmetic number, because the mean of its divisors is an integer number (1097460).

Almost surely, 2^25112224 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 25112224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26339040).

25112224 is an abundant number, since it is smaller than the sum of its proper divisors (27565856).

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

25112224 is a wasteful number, since it uses less digits than its factorization.

25112224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 525 counting only the distinct ones).

The product of its digits is 320, while the sum is 19.

The square root of 25112224 is about 5011.2098339623. The cubic root of 25112224 is about 292.8386473915.

Adding to 25112224 its reverse (42221152), we get a palindrome (67333376).

The spelling of 25112224 in words is "twenty-five million, one hundred twelve thousand, two hundred twenty-four".