52868218 has 16 divisors (see below), whose sum is σ = 88348680. Its totient is φ = 23558976.

The previous prime is 52868213. The next prime is 52868219. The reversal of 52868218 is 81286825.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34609689 + 18258529 = 5883^2 + 4273^2 .

It is not an unprimeable number, because it can be changed into a prime (52868213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34305 + ... + 35812.

Almost surely, 2^52868218 is an apocalyptic number.

52868218 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

52868218 is a deficient number, since it is larger than the sum of its proper divisors (35480462).

52868218 is a wasteful number, since it uses less digits than its factorization.

52868218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70161.

The product of its digits is 61440, while the sum is 40.

The square root of 52868218 is about 7271.0534312436. The cubic root of 52868218 is about 375.3169894531.

The spelling of 52868218 in words is "fifty-two million, eight hundred sixty-eight thousand, two hundred eighteen".