20255276659 has 2 divisors, whose sum is σ = 20255276660. Its totient is φ = 20255276658.

The previous prime is 20255276621. The next prime is 20255276771. The reversal of 20255276659 is 95667255202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20255276659 is a prime.

It is not a weakly prime, because it can be changed into another prime (20255276959) 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 as a sum of consecutive naturals, namely, 10127638329 + 10127638330.

It is an arithmetic number, because the mean of its divisors is an integer number (10127638330).

Almost surely, 2^20255276659 is an apocalyptic number.

20255276659 is a deficient number, since it is larger than the sum of its proper divisors (1).

20255276659 is an equidigital number, since it uses as much as digits as its factorization.

20255276659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 20255276659 in words is "twenty billion, two hundred fifty-five million, two hundred seventy-six thousand, six hundred fifty-nine".