5711218 has 24 divisors (see below), whose sum is σ = 9361044. Its totient is φ = 2611200.

The previous prime is 5711213. The next prime is 5711257. The reversal of 5711218 is 8121175.

It can be written as a sum of positive squares in 6 ways, for example, as 3674889 + 2036329 = 1917^2 + 1427^2 .

It is a super-2 number, since 2×5711218² = 65236022087048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5711192 and 5711201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5711213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23578 + ... + 23818.

Almost surely, 2^5711218 is an apocalyptic number.

5711218 is a deficient number, since it is larger than the sum of its proper divisors (3649826).

5711218 is a wasteful number, since it uses less digits than its factorization.

5711218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 301 counting only the distinct ones).

The product of its digits is 560, while the sum is 25.

The square root of 5711218 is about 2389.8154740482. The cubic root of 5711218 is about 178.7487084850.

It can be divided in two parts, 5711 and 218, that added together give a square (5929 = 77²).

The spelling of 5711218 in words is "five million, seven hundred eleven thousand, two hundred eighteen".