5135511511 has 4 divisors (see below), whose sum is σ = 5530550872. Its totient is φ = 4740472152.

The previous prime is 5135511509. The next prime is 5135511527. The reversal of 5135511511 is 1151155315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1151155315 = 5 ⋅230231063.

It is not a de Polignac number, because 5135511511 - 2¹ = 5135511509 is a prime.

It is a super-2 number, since 2×5135511511² = 52746956959227006242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5135511511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5135512511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197519661 + ... + 197519686.

It is an arithmetic number, because the mean of its divisors is an integer number (1382637718).

Almost surely, 2^5135511511 is an apocalyptic number.

5135511511 is a deficient number, since it is larger than the sum of its proper divisors (395039361).

5135511511 is a wasteful number, since it uses less digits than its factorization.

5135511511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395039360.

The product of its digits is 1875, while the sum is 28.

The square root of 5135511511 is about 71662.4832879799. The cubic root of 5135511511 is about 1725.2865460829.

Adding to 5135511511 its reverse (1151155315), we get a palindrome (6286666826).

The spelling of 5135511511 in words is "five billion, one hundred thirty-five million, five hundred eleven thousand, five hundred eleven".