52228618 has 8 divisors (see below), whose sum is σ = 84369348. Its totient is φ = 24105504.

The previous prime is 52228613. The next prime is 52228621. The reversal of 52228618 is 81682225.

It can be written as a sum of positive squares in 2 ways, for example, as 44315649 + 7912969 = 6657^2 + 2813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (52228613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004371 + ... + 1004422.

Almost surely, 2^52228618 is an apocalyptic number.

52228618 is a deficient number, since it is larger than the sum of its proper divisors (32140730).

52228618 is a wasteful number, since it uses less digits than its factorization.

52228618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008808.

The product of its digits is 15360, while the sum is 34.

The square root of 52228618 is about 7226.9369721895. The cubic root of 52228618 is about 373.7973155162.

The spelling of 52228618 in words is "fifty-two million, two hundred twenty-eight thousand, six hundred eighteen".