25375840 has 96 divisors (see below), whose sum is σ = 69431040. Its totient is φ = 8584704.

The previous prime is 25375837. The next prime is 25375853. The reversal of 25375840 is 4857352.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25375796 and 25375805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155599 + ... + 155761.

It is an arithmetic number, because the mean of its divisors is an integer number (723240).

Almost surely, 2^25375840 is an apocalyptic number.

25375840 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 25375840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34715520).

25375840 is an abundant number, since it is smaller than the sum of its proper divisors (44055200).

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

25375840 is a wasteful number, since it uses less digits than its factorization.

25375840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 25375840 is about 5037.4437962125. The cubic root of 25375840 is about 293.8597754796.

The spelling of 25375840 in words is "twenty-five million, three hundred seventy-five thousand, eight hundred forty".