20502422027 has 2 divisors, whose sum is σ = 20502422028. Its totient is φ = 20502422026.

The previous prime is 20502422011. The next prime is 20502422029. The reversal of 20502422027 is 72022420502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20502422027 - 2⁴ = 20502422011 is a prime.

Together with 20502422029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20502421987 and 20502422005.

It is not a weakly prime, because it can be changed into another prime (20502422029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10251211013 + 10251211014.

It is an arithmetic number, because the mean of its divisors is an integer number (10251211014).

Almost surely, 2^20502422027 is an apocalyptic number.

20502422027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20502422027 is an equidigital number, since it uses as much as digits as its factorization.

20502422027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 26.

Adding to 20502422027 its reverse (72022420502), we get a palindrome (92524842529).

The spelling of 20502422027 in words is "twenty billion, five hundred two million, four hundred twenty-two thousand, twenty-seven".