20522354959 has 2 divisors, whose sum is σ = 20522354960. Its totient is φ = 20522354958.

The previous prime is 20522354953. The next prime is 20522355011. The reversal of 20522354959 is 95945322502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20522354959 - 2⁵ = 20522354927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20522354953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10261177479 + 10261177480.

It is an arithmetic number, because the mean of its divisors is an integer number (10261177480).

Almost surely, 2^20522354959 is an apocalyptic number.

20522354959 is a deficient number, since it is larger than the sum of its proper divisors (1).

20522354959 is an equidigital number, since it uses as much as digits as its factorization.

20522354959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 20522354959 in words is "twenty billion, five hundred twenty-two million, three hundred fifty-four thousand, nine hundred fifty-nine".