25360240 has 20 divisors (see below), whose sum is σ = 58962744. Its totient is φ = 10144064.

The previous prime is 25360211. The next prime is 25360259. The reversal of 25360240 is 4206352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158422 + ... + 158581.

Almost surely, 2^25360240 is an apocalyptic number.

25360240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25360240 is an abundant number, since it is smaller than the sum of its proper divisors (33602504).

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

25360240 is a wasteful number, since it uses less digits than its factorization.

25360240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317016 (or 317010 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 25360240 is about 5035.8951537934. The cubic root of 25360240 is about 293.7995455889.

Adding to 25360240 its reverse (4206352), we get a palindrome (29566592).

It can be divided in two parts, 25360 and 240, that added together give a square (25600 = 160²).

The spelling of 25360240 in words is "twenty-five million, three hundred sixty thousand, two hundred forty".