25400488 has 16 divisors (see below), whose sum is σ = 48064500. Its totient is φ = 12583296.

The previous prime is 25400483. The next prime is 25400489. The reversal of 25400488 is 88400452.

It can be written as a sum of positive squares in 2 ways, for example, as 25381444 + 19044 = 5038^2 + 138^2 .

It is not an unprimeable number, because it can be changed into a prime (25400483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13693 + ... + 15436.

Almost surely, 2^25400488 is an apocalyptic number.

It is an amenable number.

25400488 is a deficient number, since it is larger than the sum of its proper divisors (22664012).

25400488 is a wasteful number, since it uses less digits than its factorization.

25400488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29244 (or 29240 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 25400488 is about 5039.8896813323. The cubic root of 25400488 is about 293.9548884152.

The spelling of 25400488 in words is "twenty-five million, four hundred thousand, four hundred eighty-eight".