25541708648 has 32 divisors (see below), whose sum is σ = 48409099200. Its totient is φ = 12632750592.

The previous prime is 25541708641. The next prime is 25541708651. The reversal of 25541708648 is 84680714552.

It is a junction number, because it is equal to n+sod(n) for n = 25541708596 and 25541708605.

It is not an unprimeable number, because it can be changed into a prime (25541708641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751933 + ... + 1766451.

It is an arithmetic number, because the mean of its divisors is an integer number (1512784350).

Almost surely, 2^25541708648 is an apocalyptic number.

It is an amenable number.

25541708648 is a deficient number, since it is larger than the sum of its proper divisors (22867390552).

25541708648 is a wasteful number, since it uses less digits than its factorization.

25541708648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16889 (or 16885 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 25541708648 in words is "twenty-five billion, five hundred forty-one million, seven hundred eight thousand, six hundred forty-eight".