5181516 has 24 divisors (see below), whose sum is σ = 13433840. Its totient is φ = 1727136.

The previous prime is 5181511. The next prime is 5181529. The reversal of 5181516 is 6151815.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 5181516.

It is not an unprimeable number, because it can be changed into a prime (5181511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23881 + ... + 24096.

Almost surely, 2^5181516 is an apocalyptic number.

It is an amenable number.

5181516 is an abundant number, since it is smaller than the sum of its proper divisors (8252324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5181516 is a wasteful number, since it uses less digits than its factorization.

5181516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47990 (or 47982 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 5181516 is about 2276.2943570637. The cubic root of 5181516 is about 173.0423009037.

Subtracting 5181516 from its reverse (6151815), we obtain a cube (970299 = 99³).

The spelling of 5181516 in words is "five million, one hundred eighty-one thousand, five hundred sixteen".