20330625473 has 2 divisors, whose sum is σ = 20330625474. Its totient is φ = 20330625472.

The previous prime is 20330625463. The next prime is 20330625493. The reversal of 20330625473 is 37452603302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16856348224 + 3474277249 = 129832^2 + 58943^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330625473 - 2²⁸ = 20062190017 is a prime.

It is not a weakly prime, because it can be changed into another prime (20330625443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165312736 + 10165312737.

It is an arithmetic number, because the mean of its divisors is an integer number (10165312737).

Almost surely, 2^20330625473 is an apocalyptic number.

It is an amenable number.

20330625473 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330625473 is an equidigital number, since it uses as much as digits as its factorization.

20330625473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 35.

The spelling of 20330625473 in words is "twenty billion, three hundred thirty million, six hundred twenty-five thousand, four hundred seventy-three".