20005756253047 has 2 divisors, whose sum is σ = 20005756253048. Its totient is φ = 20005756253046.

The previous prime is 20005756253029. The next prime is 20005756253059. The reversal of 20005756253047 is 74035265750002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20005756253047 - 2⁷ = 20005756252919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20005756252988 and 20005756253006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20005756253347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002878126523 + 10002878126524.

It is an arithmetic number, because the mean of its divisors is an integer number (10002878126524).

Almost surely, 2^{20005756253047} is an apocalyptic number.

20005756253047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20005756253047 is an equidigital number, since it uses as much as digits as its factorization.

20005756253047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764000, while the sum is 46.

The spelling of 20005756253047 in words is "twenty trillion, five billion, seven hundred fifty-six million, two hundred fifty-three thousand, forty-seven".