20005500373 has 2 divisors, whose sum is σ = 20005500374. Its totient is φ = 20005500372.

The previous prime is 20005500341. The next prime is 20005500379. The reversal of 20005500373 is 37300550002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19966537809 + 38962564 = 141303^2 + 6242^2 .

It is a cyclic number.

It is not a de Polignac number, because 20005500373 - 2⁵ = 20005500341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20005500379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002750186 + 10002750187.

It is an arithmetic number, because the mean of its divisors is an integer number (10002750187).

Almost surely, 2^20005500373 is an apocalyptic number.

It is an amenable number.

20005500373 is a deficient number, since it is larger than the sum of its proper divisors (1).

20005500373 is an equidigital number, since it uses as much as digits as its factorization.

20005500373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 25.

The spelling of 20005500373 in words is "twenty billion, five million, five hundred thousand, three hundred seventy-three".