25501242452432 has 20 divisors (see below), whose sum is σ = 51002484905856. Its totient is φ = 12339310863840.

The previous prime is 25501242452351. The next prime is 25501242452443. The reversal of 25501242452432 is 23425424210552.

25501242452432 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 25501242452432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25706897138 + ... + 25706898129.

Almost surely, 2^{25501242452432} is an apocalyptic number.

It is an amenable number.

25501242452432 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25501242452432 is a wasteful number, since it uses less digits than its factorization.

25501242452432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51413795306 (or 51413795300 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 41.

Adding to 25501242452432 its reverse (23425424210552), we get a palindrome (48926666662984).

The spelling of 25501242452432 in words is "twenty-five trillion, five hundred one billion, two hundred forty-two million, four hundred fifty-two thousand, four hundred thirty-two".