502544421243 has 6 divisors (see below), whose sum is σ = 725897497364. Its totient is φ = 335029614156.

The previous prime is 502544421241. The next prime is 502544421341. The reversal of 502544421243 is 342124445205.

502544421243 is a `hidden beast` number, since 50 + 2 + 544 + 4 + 21 + 2 + 43 = 666.

It is not a de Polignac number, because 502544421243 - 2¹ = 502544421241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 502544421198 and 502544421207.

It is not an unprimeable number, because it can be changed into a prime (502544421241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27919134505 + ... + 27919134522.

Almost surely, 2^502544421243 is an apocalyptic number.

502544421243 is a deficient number, since it is larger than the sum of its proper divisors (223353076121).

502544421243 is a wasteful number, since it uses less digits than its factorization.

502544421243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55838269033 (or 55838269030 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 502544421243 its reverse (342124445205), we get a palindrome (844668866448).

The spelling of 502544421243 in words is "five hundred two billion, five hundred forty-four million, four hundred twenty-one thousand, two hundred forty-three".