20000550465953 has 2 divisors, whose sum is σ = 20000550465954. Its totient is φ = 20000550465952.

The previous prime is 20000550465901. The next prime is 20000550465983. The reversal of 20000550465953 is 35956405500002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18719744463424 + 1280806002529 = 4326632^2 + 1131727^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000550465953 - 2⁸ = 20000550465697 is a prime.

It is a super-2 number, since 2×20000550465953² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20000550465983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000275232976 + 10000275232977.

It is an arithmetic number, because the mean of its divisors is an integer number (10000275232977).

Almost surely, 2^{20000550465953} is an apocalyptic number.

It is an amenable number.

20000550465953 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000550465953 is an equidigital number, since it uses as much as digits as its factorization.

20000550465953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810000, while the sum is 44.

Adding to 20000550465953 its reverse (35956405500002), we get a palindrome (55956955965955).

The spelling of 20000550465953 in words is "twenty trillion, five hundred fifty million, four hundred sixty-five thousand, nine hundred fifty-three".