5513615131 has 4 divisors (see below), whose sum is σ = 5753337552. Its totient is φ = 5273892712.

The previous prime is 5513615119. The next prime is 5513615183. The reversal of 5513615131 is 1315163155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1315163155 = 5 ⋅263032631.

It is a cyclic number.

It is not a de Polignac number, because 5513615131 - 2⁹ = 5513614619 is a prime.

It is a super-2 number, since 2×5513615131² = 60799903625584294322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5513615093 and 5513615102.

It is not an unprimeable number, because it can be changed into a prime (5513612131) 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, 119861176 + ... + 119861221.

It is an arithmetic number, because the mean of its divisors is an integer number (1438334388).

Almost surely, 2^5513615131 is an apocalyptic number.

5513615131 is a deficient number, since it is larger than the sum of its proper divisors (239722421).

5513615131 is a wasteful number, since it uses less digits than its factorization.

5513615131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239722420.

The product of its digits is 6750, while the sum is 31.

The square root of 5513615131 is about 74253.7213276210. The cubic root of 5513615131 is about 1766.6295175805.

Adding to 5513615131 its reverse (1315163155), we get a palindrome (6828778286).

The spelling of 5513615131 in words is "five billion, five hundred thirteen million, six hundred fifteen thousand, one hundred thirty-one".