25606012427 has 2 divisors, whose sum is σ = 25606012428. Its totient is φ = 25606012426.

The previous prime is 25606012403. The next prime is 25606012433. The reversal of 25606012427 is 72421060652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25606012427 - 2¹⁴ = 25605996043 is a prime.

It is not a weakly prime, because it can be changed into another prime (25606012457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12803006213 + 12803006214.

It is an arithmetic number, because the mean of its divisors is an integer number (12803006214).

Almost surely, 2^25606012427 is an apocalyptic number.

25606012427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25606012427 is an equidigital number, since it uses as much as digits as its factorization.

25606012427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 25606012427 in words is "twenty-five billion, six hundred six million, twelve thousand, four hundred twenty-seven".