505521335231 has 16 divisors (see below), whose sum is σ = 553643389440. Its totient is φ = 457763718720.

The previous prime is 505521335173. The next prime is 505521335237. The reversal of 505521335231 is 132533125505.

It is not a de Polignac number, because 505521335231 - 2⁶ = 505521335167 is a prime.

It is a super-2 number, since 2×505521335231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505521335191 and 505521335200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505521335237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2810696 + ... + 2985138.

It is an arithmetic number, because the mean of its divisors is an integer number (34602711840).

Almost surely, 2^505521335231 is an apocalyptic number.

505521335231 is a deficient number, since it is larger than the sum of its proper divisors (48122054209).

505521335231 is a wasteful number, since it uses less digits than its factorization.

505521335231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175486.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 505521335231 in words is "five hundred five billion, five hundred twenty-one million, three hundred thirty-five thousand, two hundred thirty-one".