25002224 has 40 divisors (see below), whose sum is σ = 52934112. Its totient is φ = 11370240.

The previous prime is 25002209. The next prime is 25002227. The reversal of 25002224 is 42220052.

It is a super-2 number, since 2×25002224² = 1250222409892352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25002227) 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, 13922 + ... + 15614.

Almost surely, 2^25002224 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 25002224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26467056).

25002224 is an abundant number, since it is smaller than the sum of its proper divisors (27931888).

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

25002224 is a wasteful number, since it uses less digits than its factorization.

25002224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1779 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 25002224 is about 5000.2223950540. Note that the first 3 decimals coincide. The cubic root of 25002224 is about 292.4104442515.

Adding to 25002224 its reverse (42220052), we get a palindrome (67222276).

The spelling of 25002224 in words is "twenty-five million, two thousand, two hundred twenty-four".