20550000353 has 2 divisors, whose sum is σ = 20550000354. Its totient is φ = 20550000352.

The previous prime is 20550000349. The next prime is 20550000439. The reversal of 20550000353 is 35300005502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11792222464 + 8757777889 = 108592^2 + 93583^2 .

It is a cyclic number.

It is not a de Polignac number, because 20550000353 - 2² = 20550000349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20550000553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10275000176 + 10275000177.

It is an arithmetic number, because the mean of its divisors is an integer number (10275000177).

Almost surely, 2^20550000353 is an apocalyptic number.

It is an amenable number.

20550000353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20550000353 is an equidigital number, since it uses as much as digits as its factorization.

20550000353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 23.

Adding to 20550000353 its reverse (35300005502), we get a palindrome (55850005855).

The spelling of 20550000353 in words is "twenty billion, five hundred fifty million, three hundred fifty-three", and thus it is an aban number.