25606012351 has 2 divisors, whose sum is σ = 25606012352. Its totient is φ = 25606012350.

The previous prime is 25606012349. The next prime is 25606012361. The reversal of 25606012351 is 15321060652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25606012351 - 2¹ = 25606012349 is a prime.

Together with 25606012349, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25606012301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12803006175 + 12803006176.

It is an arithmetic number, because the mean of its divisors is an integer number (12803006176).

Almost surely, 2^25606012351 is an apocalyptic number.

25606012351 is a deficient number, since it is larger than the sum of its proper divisors (1).

25606012351 is an equidigital number, since it uses as much as digits as its factorization.

25606012351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 25606012351 in words is "twenty-five billion, six hundred six million, twelve thousand, three hundred fifty-one".