52668578 has 8 divisors (see below), whose sum is σ = 79064220. Its totient is φ = 26313840.

The previous prime is 52668557. The next prime is 52668587. The reversal of 52668578 is 87586625.

It can be written as a sum of positive squares in 2 ways, for example, as 47018449 + 5650129 = 6857^2 + 2377^2 .

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

It is a Curzon number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 6773 + ... + 12296.

Almost surely, 2^52668578 is an apocalyptic number.

52668578 is a deficient number, since it is larger than the sum of its proper divisors (26395642).

52668578 is a wasteful number, since it uses less digits than its factorization.

52668578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20452.

The product of its digits is 806400, while the sum is 47.

The square root of 52668578 is about 7257.3120368357. The cubic root of 52668578 is about 374.8439718303.

The spelling of 52668578 in words is "fifty-two million, six hundred sixty-eight thousand, five hundred seventy-eight".