5281818 has 8 divisors (see below), whose sum is σ = 10563648. Its totient is φ = 1760604.

The previous prime is 5281817. The next prime is 5281823. The reversal of 5281818 is 8181825.

It is a sphenic number, since it is the product of 3 distinct primes.

5281818 is an admirable number.

5281818 is a modest number, since divided by 1818 gives 528 as remainder.

It is not an unprimeable number, because it can be changed into a prime (5281817) 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, 440146 + ... + 440157.

It is an arithmetic number, because the mean of its divisors is an integer number (1320456).

Almost surely, 2^5281818 is an apocalyptic number.

5281818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5281818 is a wasteful number, since it uses less digits than its factorization.

5281818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880308.

The product of its digits is 5120, while the sum is 33.

The square root of 5281818 is about 2298.2206160419. The cubic root of 5281818 is about 174.1517371064.

It can be divided in two parts, 528 and 1818, that added together give a triangular number (2346 = T₆₈).

The spelling of 5281818 in words is "five million, two hundred eighty-one thousand, eight hundred eighteen".