505442311053231 has 8 divisors (see below), whose sum is σ = 673934698396080. Its totient is φ = 336955732206272.

The previous prime is 505442311053217. The next prime is 505442311053233. The reversal of 505442311053231 is 132350113244505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505442311053231 - 2³⁰ = 505441237311407 is a prime.

It is a super-2 number, since 2×505442311053231² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505442311053231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505442311053233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451920926 + ... + 1452269003.

It is an arithmetic number, because the mean of its divisors is an integer number (84241837299510).

Almost surely, 2^{505442311053231} is an apocalyptic number.

505442311053231 is a deficient number, since it is larger than the sum of its proper divisors (168492387342849).

505442311053231 is a wasteful number, since it uses less digits than its factorization.

505442311053231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904247945.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 505442311053231 its reverse (132350113244505), we get a palindrome (637792424297736).

The spelling of 505442311053231 in words is "five hundred five trillion, four hundred forty-two billion, three hundred eleven million, fifty-three thousand, two hundred thirty-one".