505363111363 has 4 divisors (see below), whose sum is σ = 551305212408. Its totient is φ = 459421010320.

The previous prime is 505363111349. The next prime is 505363111369. The reversal of 505363111363 is 363111363505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505363111363 is a prime.

It is a super-3 number, since 3×505363111363³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505363111369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22971050506 + ... + 22971050527.

It is an arithmetic number, because the mean of its divisors is an integer number (137826303102).

Almost surely, 2^505363111363 is an apocalyptic number.

505363111363 is a deficient number, since it is larger than the sum of its proper divisors (45942101045).

505363111363 is a wasteful number, since it uses less digits than its factorization.

505363111363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45942101044.

The product of its (nonzero) digits is 72900, while the sum is 37.

Adding to 505363111363 its reverse (363111363505), we get a palindrome (868474474868).

The spelling of 505363111363 in words is "five hundred five billion, three hundred sixty-three million, one hundred eleven thousand, three hundred sixty-three".