20552424222013 has 2 divisors, whose sum is σ = 20552424222014. Its totient is φ = 20552424222012.

The previous prime is 20552424221939. The next prime is 20552424222023. The reversal of 20552424222013 is 31022242425502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19712418977689 + 840005244324 = 4439867^2 + 916518^2 .

It is a cyclic number.

It is not a de Polignac number, because 20552424222013 - 2¹³ = 20552424213821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20552424222013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20552424222023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10276212111006 + 10276212111007.

It is an arithmetic number, because the mean of its divisors is an integer number (10276212111007).

Almost surely, 2^{20552424222013} is an apocalyptic number.

It is an amenable number.

20552424222013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20552424222013 is an equidigital number, since it uses as much as digits as its factorization.

20552424222013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 20552424222013 its reverse (31022242425502), we get a palindrome (51574666647515).

The spelling of 20552424222013 in words is "twenty trillion, five hundred fifty-two billion, four hundred twenty-four million, two hundred twenty-two thousand, thirteen".