25748140 has 24 divisors (see below), whose sum is σ = 58987152. Its totient is φ = 9362880.

The previous prime is 25748117. The next prime is 25748141. The reversal of 25748140 is 4184752.

It is not an unprimeable number, because it can be changed into a prime (25748141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 58299 + ... + 58738.

It is an arithmetic number, because the mean of its divisors is an integer number (2457798).

Almost surely, 2^25748140 is an apocalyptic number.

25748140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25748140 is an abundant number, since it is smaller than the sum of its proper divisors (33239012).

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

25748140 is a wasteful number, since it uses less digits than its factorization.

25748140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117057 (or 117055 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 25748140 is about 5074.2625079907. The cubic root of 25748140 is about 295.2899189456.

The spelling of 25748140 in words is "twenty-five million, seven hundred forty-eight thousand, one hundred forty".