25648793251503 has 16 divisors (see below), whose sum is σ = 35127706965600. Its totient is φ = 16634670022656.

The previous prime is 25648793251489. The next prime is 25648793251541. The reversal of 25648793251503 is 30515239784652.

It is not a de Polignac number, because 25648793251503 - 2⁶ = 25648793251439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25648793251573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15784978 + ... + 17333871.

It is an arithmetic number, because the mean of its divisors is an integer number (2195481685350).

It is a 1-persistent number, because it is pandigital, but 2⋅25648793251503 = 51297586503006 is not.

Almost surely, 2^{25648793251503} is an apocalyptic number.

25648793251503 is a deficient number, since it is larger than the sum of its proper divisors (9478913714097).

25648793251503 is a wasteful number, since it uses less digits than its factorization.

25648793251503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33125866.

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 25648793251503 in words is "twenty-five trillion, six hundred forty-eight billion, seven hundred ninety-three million, two hundred fifty-one thousand, five hundred three".