25249120 has 96 divisors (see below), whose sum is σ = 65620800. Its totient is φ = 9123840.

The previous prime is 25249117. The next prime is 25249121. The reversal of 25249120 is 2194252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25249121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126781 + ... + 126979.

It is an arithmetic number, because the mean of its divisors is an integer number (683550).

Almost surely, 2^25249120 is an apocalyptic number.

25249120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25249120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32810400).

25249120 is an abundant number, since it is smaller than the sum of its proper divisors (40371680).

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

25249120 is a wasteful number, since it uses less digits than its factorization.

25249120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 25249120 is about 5024.8502465248. The cubic root of 25249120 is about 293.3698072185.

The spelling of 25249120 in words is "twenty-five million, two hundred forty-nine thousand, one hundred twenty".