5715218 has 4 divisors (see below), whose sum is σ = 8572830. Its totient is φ = 2857608.

The previous prime is 5715217. The next prime is 5715221. The reversal of 5715218 is 8125175.

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., 3621409 + 2093809 = 1903^2 + 1447^2 .

It is not an unprimeable number, because it can be changed into a prime (5715211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428803 + ... + 1428806.

Almost surely, 2^5715218 is an apocalyptic number.

5715218 is a deficient number, since it is larger than the sum of its proper divisors (2857612).

5715218 is a wasteful number, since it uses less digits than its factorization.

5715218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857611.

The product of its digits is 2800, while the sum is 29.

The square root of 5715218 is about 2390.6522122634. The cubic root of 5715218 is about 178.7904291814.

The spelling of 5715218 in words is "five million, seven hundred fifteen thousand, two hundred eighteen".