25303740 has 96 divisors (see below), whose sum is σ = 88349184. Its totient is φ = 5256960.

The previous prime is 25303739. The next prime is 25303757. The reversal of 25303740 is 4730352.

It is a self number, because there is not a number n which added to its sum of digits gives 25303740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1882 + ... + 7358.

It is an arithmetic number, because the mean of its divisors is an integer number (920304).

Almost surely, 2^25303740 is an apocalyptic number.

25303740 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 25303740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44174592).

25303740 is an abundant number, since it is smaller than the sum of its proper divisors (63045444).

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

25303740 is a wasteful number, since it uses less digits than its factorization.

25303740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5507 (or 5505 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 25303740 is about 5030.2822982413. The cubic root of 25303740 is about 293.5811983248.

The spelling of 25303740 in words is "twenty-five million, three hundred three thousand, seven hundred forty".