25030128 has 80 divisors (see below), whose sum is σ = 67523456. Its totient is φ = 7983360.

The previous prime is 25030121. The next prime is 25030139. The reversal of 25030128 is 82103052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25030121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138198 + ... + 138378.

Almost surely, 2^25030128 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 25030128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33761728).

25030128 is an abundant number, since it is smaller than the sum of its proper divisors (42493328).

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

25030128 is a wasteful number, since it uses less digits than its factorization.

25030128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25030128 is about 5003.0118928501. The cubic root of 25030128 is about 292.5191864104.

The spelling of 25030128 in words is "twenty-five million, thirty thousand, one hundred twenty-eight".