25668549001 has 8 divisors (see below), whose sum is σ = 25799533344. Its totient is φ = 25537653120.

The previous prime is 25668548981. The next prime is 25668549017. The reversal of 25668549001 is 10094586652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25668549001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25668549031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604665 + ... + 645721.

It is an arithmetic number, because the mean of its divisors is an integer number (3224941668).

Almost surely, 2^25668549001 is an apocalyptic number.

It is an amenable number.

25668549001 is a deficient number, since it is larger than the sum of its proper divisors (130984343).

25668549001 is a wasteful number, since it uses less digits than its factorization.

25668549001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44231.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 25668549001 in words is "twenty-five billion, six hundred sixty-eight million, five hundred forty-nine thousand, one".