20022305533 has 2 divisors, whose sum is σ = 20022305534. Its totient is φ = 20022305532.

The previous prime is 20022305531. The next prime is 20022305561. The reversal of 20022305533 is 33550322002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19807184644 + 215120889 = 140738^2 + 14667^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022305533 - 2¹ = 20022305531 is a prime.

Together with 20022305531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20022305498 and 20022305507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022305531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011152766 + 10011152767.

It is an arithmetic number, because the mean of its divisors is an integer number (10011152767).

Almost surely, 2^20022305533 is an apocalyptic number.

It is an amenable number.

20022305533 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022305533 is an equidigital number, since it uses as much as digits as its factorization.

20022305533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

Adding to 20022305533 its reverse (33550322002), we get a palindrome (53572627535).

The spelling of 20022305533 in words is "twenty billion, twenty-two million, three hundred five thousand, five hundred thirty-three".