500545804481 has 2 divisors, whose sum is σ = 500545804482. Its totient is φ = 500545804480.

The previous prime is 500545804477. The next prime is 500545804483. The reversal of 500545804481 is 184408545005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 460138372225 + 40407432256 = 678335^2 + 201016^2 .

It is a cyclic number.

It is not a de Polignac number, because 500545804481 - 2² = 500545804477 is a prime.

It is a super-2 number, since 2×500545804481² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 500545804483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (500545804483) 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, 250272902240 + 250272902241.

It is an arithmetic number, because the mean of its divisors is an integer number (250272902241).

Almost surely, 2^500545804481 is an apocalyptic number.

It is an amenable number.

500545804481 is a deficient number, since it is larger than the sum of its proper divisors (1).

500545804481 is an equidigital number, since it uses as much as digits as its factorization.

500545804481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512000, while the sum is 44.

The spelling of 500545804481 in words is "five hundred billion, five hundred forty-five million, eight hundred four thousand, four hundred eighty-one".