5178223 has 4 divisors (see below), whose sum is σ = 5188648. Its totient is φ = 5167800.

The previous prime is 5178193. The next prime is 5178301. The reversal of 5178223 is 3228715.

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

It is a cyclic number.

It is not a de Polignac number, because 5178223 - 2⁵ = 5178191 is a prime.

It is a Duffinian number.

5178223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5178191 and 5178200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178623) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4428 + ... + 5473.

It is an arithmetic number, because the mean of its divisors is an integer number (1297162).

Almost surely, 2^5178223 is an apocalyptic number.

5178223 is a deficient number, since it is larger than the sum of its proper divisors (10425).

5178223 is an equidigital number, since it uses as much as digits as its factorization.

5178223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10424.

The product of its digits is 3360, while the sum is 28.

The square root of 5178223 is about 2275.5709173744. The cubic root of 5178223 is about 173.0056353761.

The spelling of 5178223 in words is "five million, one hundred seventy-eight thousand, two hundred twenty-three".