505534311513 has 128 divisors (see below), whose sum is σ = 992626790400. Its totient is φ = 246328128000.

The previous prime is 505534311511. The next prime is 505534311517. The reversal of 505534311513 is 315113435505.

505534311513 is a `hidden beast` number, since 5 + 0 + 5 + 534 + 3 + 115 + 1 + 3 = 666.

It is not a de Polignac number, because 505534311513 - 2¹ = 505534311511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505534311511) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3926245 + ... + 4052957.

It is an arithmetic number, because the mean of its divisors is an integer number (7754896800).

Almost surely, 2^505534311513 is an apocalyptic number.

It is an amenable number.

505534311513 is a deficient number, since it is larger than the sum of its proper divisors (487092478887).

505534311513 is a wasteful number, since it uses less digits than its factorization.

505534311513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126860 (or 126854 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 505534311513 in words is "five hundred five billion, five hundred thirty-four million, three hundred eleven thousand, five hundred thirteen".