5521516131 has 4 divisors (see below), whose sum is σ = 7362021512. Its totient is φ = 3681010752.

The previous prime is 5521516129. The next prime is 5521516141. The reversal of 5521516131 is 1316151255.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5521516131 - 2¹ = 5521516129 is a prime.

It is a super-2 number, since 2×5521516131² = 60974280769786418322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5521516141) 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, 920252686 + ... + 920252691.

It is an arithmetic number, because the mean of its divisors is an integer number (1840505378).

Almost surely, 2^5521516131 is an apocalyptic number.

5521516131 is a deficient number, since it is larger than the sum of its proper divisors (1840505381).

5521516131 is a wasteful number, since it uses less digits than its factorization.

5521516131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840505380.

The product of its digits is 4500, while the sum is 30.

The square root of 5521516131 is about 74306.9050021598. The cubic root of 5521516131 is about 1767.4729737316.

Adding to 5521516131 its reverse (1316151255), we get a palindrome (6837667386).

The spelling of 5521516131 in words is "five billion, five hundred twenty-one million, five hundred sixteen thousand, one hundred thirty-one".