20000550465653 has 4 divisors (see below), whose sum is σ = 20050427150508. Its totient is φ = 19950673780800.

The previous prime is 20000550465563. The next prime is 20000550465697. The reversal of 20000550465653 is 35656405500002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17937655972369 + 2062894493284 = 4235287^2 + 1436278^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000550465653 - 2⁸ = 20000550465397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20000550465653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000550465953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24938341826 + ... + 24938342627.

It is an arithmetic number, because the mean of its divisors is an integer number (5012606787627).

Almost surely, 2^{20000550465653} is an apocalyptic number.

It is an amenable number.

20000550465653 is a deficient number, since it is larger than the sum of its proper divisors (49876684855).

20000550465653 is an equidigital number, since it uses as much as digits as its factorization.

20000550465653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49876684854.

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 20000550465653 its reverse (35656405500002), we get a palindrome (55656955965655).

The spelling of 20000550465653 in words is "twenty trillion, five hundred fifty million, four hundred sixty-five thousand, six hundred fifty-three".