5181996 has 12 divisors (see below), whose sum is σ = 12091352. Its totient is φ = 1727328.

The previous prime is 5181989. The next prime is 5181997. The reversal of 5181996 is 6991815.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (5181997) 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, 215905 + ... + 215928.

Almost surely, 2^5181996 is an apocalyptic number.

It is an amenable number.

5181996 is an abundant number, since it is smaller than the sum of its proper divisors (6909356).

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

5181996 is a wasteful number, since it uses less digits than its factorization.

5181996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431840 (or 431838 counting only the distinct ones).

The product of its digits is 19440, while the sum is 39.

The square root of 5181996 is about 2276.3997891407. The cubic root of 5181996 is about 173.0476441109.

It can be divided in two parts, 51819 and 96, that added together give a palindrome (51915).

The spelling of 5181996 in words is "five million, one hundred eighty-one thousand, nine hundred ninety-six".