52649218 has 8 divisors (see below), whose sum is σ = 79268220. Its totient is φ = 26226480.

The previous prime is 52649197. The next prime is 52649249. The reversal of 52649218 is 81294625.

It can be written as a sum of positive squares in 2 ways, for example, as 52316289 + 332929 = 7233^2 + 577^2 .

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

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, 48393 + ... + 49468.

Almost surely, 2^52649218 is an apocalyptic number.

52649218 is a deficient number, since it is larger than the sum of its proper divisors (26619002).

52649218 is a wasteful number, since it uses less digits than its factorization.

52649218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98132.

The product of its digits is 34560, while the sum is 37.

The square root of 52649218 is about 7255.9780870672. The cubic root of 52649218 is about 374.7980376198.

The spelling of 52649218 in words is "fifty-two million, six hundred forty-nine thousand, two hundred eighteen".