25807132 has 12 divisors (see below), whose sum is σ = 48636616. Its totient is φ = 11910960.

The previous prime is 25807109. The next prime is 25807153. The reversal of 25807132 is 23170852.

It is a self number, because there is not a number n which added to its sum of digits gives 25807132.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 248094 + ... + 248197.

Almost surely, 2^25807132 is an apocalyptic number.

It is an amenable number.

25807132 is a deficient number, since it is larger than the sum of its proper divisors (22829484).

25807132 is a wasteful number, since it uses less digits than its factorization.

25807132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496308 (or 496306 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 25807132 is about 5080.0720467332. The cubic root of 25807132 is about 295.5152615173.

Adding to 25807132 its reverse (23170852), we get a palindrome (48977984).

The spelling of 25807132 in words is "twenty-five million, eight hundred seven thousand, one hundred thirty-two".