500230054981 has 2 divisors, whose sum is σ = 500230054982. Its totient is φ = 500230054980.

The previous prime is 500230054979. The next prime is 500230055033. The reversal of 500230054981 is 189450032005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 496306160100 + 3923894881 = 704490^2 + 62641^2 .

It is a cyclic number.

It is not a de Polignac number, because 500230054981 - 2¹ = 500230054979 is a prime.

It is a super-2 number, since 2×500230054981² (a number of 24 digits) contains 22 as substring.

Together with 500230054979, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 500230054981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500230054781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250115027490 + 250115027491.

It is an arithmetic number, because the mean of its divisors is an integer number (250115027491).

Almost surely, 2^500230054981 is an apocalyptic number.

It is an amenable number.

500230054981 is a deficient number, since it is larger than the sum of its proper divisors (1).

500230054981 is an equidigital number, since it uses as much as digits as its factorization.

500230054981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 500230054981 its reverse (189450032005), we get a palindrome (689680086986).

The spelling of 500230054981 in words is "five hundred billion, two hundred thirty million, fifty-four thousand, nine hundred eighty-one".