5223818 has 4 divisors (see below), whose sum is σ = 7835730. Its totient is φ = 2611908.

The previous prime is 5223793. The next prime is 5223853. The reversal of 5223818 is 8183225.

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

It can be written as a sum of positive squares in only one way, i.e., 4765489 + 458329 = 2183^2 + 677^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305953 + ... + 1305956.

Almost surely, 2^5223818 is an apocalyptic number.

5223818 is a deficient number, since it is larger than the sum of its proper divisors (2611912).

5223818 is a wasteful number, since it uses less digits than its factorization.

5223818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611911.

The product of its digits is 3840, while the sum is 29.

The square root of 5223818 is about 2285.5673256327. The cubic root of 5223818 is about 173.5119321190.

The spelling of 5223818 in words is "five million, two hundred twenty-three thousand, eight hundred eighteen".