25327840 has 48 divisors (see below), whose sum is σ = 60147360. Its totient is φ = 10078720.

The previous prime is 25327811. The next prime is 25327843. The reversal of 25327840 is 4872352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25327843) 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, 49506 + ... + 50014.

It is an arithmetic number, because the mean of its divisors is an integer number (1253070).

Almost surely, 2^25327840 is an apocalyptic number.

25327840 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 25327840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30073680).

25327840 is an abundant number, since it is smaller than the sum of its proper divisors (34819520).

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

25327840 is a wasteful number, since it uses less digits than its factorization.

25327840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 25327840 is about 5032.6772199298. The cubic root of 25327840 is about 293.6743737714.

The spelling of 25327840 in words is "twenty-five million, three hundred twenty-seven thousand, eight hundred forty".