502556642641 has 2 divisors, whose sum is σ = 502556642642. Its totient is φ = 502556642640.

The previous prime is 502556642603. The next prime is 502556642689. The reversal of 502556642641 is 146246655205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431555711041 + 71000931600 = 656929^2 + 266460^2 .

It is a cyclic number.

It is not a de Polignac number, because 502556642641 - 2³¹ = 500409158993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 502556642591 and 502556642600.

It is not a weakly prime, because it can be changed into another prime (502556742641) 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, 251278321320 + 251278321321.

It is an arithmetic number, because the mean of its divisors is an integer number (251278321321).

Almost surely, 2^502556642641 is an apocalyptic number.

It is an amenable number.

502556642641 is a deficient number, since it is larger than the sum of its proper divisors (1).

502556642641 is an equidigital number, since it uses as much as digits as its factorization.

502556642641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 502556642641 in words is "five hundred two billion, five hundred fifty-six million, six hundred forty-two thousand, six hundred forty-one".