25660492423 has 8 divisors (see below), whose sum is σ = 25943571360. Its totient is φ = 25377792000.

The previous prime is 25660492421. The next prime is 25660492441. The reversal of 25660492423 is 32429406652.

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

It is a cyclic number.

It is not a de Polignac number, because 25660492423 - 2¹ = 25660492421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25660492423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25660492421) 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, 42798 + ... + 230548.

It is an arithmetic number, because the mean of its divisors is an integer number (3242946420).

Almost surely, 2^25660492423 is an apocalyptic number.

25660492423 is a deficient number, since it is larger than the sum of its proper divisors (283078937).

25660492423 is a wasteful number, since it uses less digits than its factorization.

25660492423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189257.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 25660492423 in words is "twenty-five billion, six hundred sixty million, four hundred ninety-two thousand, four hundred twenty-three".