20057204443 has 2 divisors, whose sum is σ = 20057204444. Its totient is φ = 20057204442.

The previous prime is 20057204413. The next prime is 20057204473. The reversal of 20057204443 is 34440275002.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20057204413) and next prime (20057204473).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20057204443 is a prime.

It is not a weakly prime, because it can be changed into another prime (20057204413) 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, 10028602221 + 10028602222.

It is an arithmetic number, because the mean of its divisors is an integer number (10028602222).

Almost surely, 2^20057204443 is an apocalyptic number.

20057204443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20057204443 is an equidigital number, since it uses as much as digits as its factorization.

20057204443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 31.

Adding to 20057204443 its reverse (34440275002), we get a palindrome (54497479445).

The spelling of 20057204443 in words is "twenty billion, fifty-seven million, two hundred four thousand, four hundred forty-three".