52931218 has 4 divisors (see below), whose sum is σ = 79396830. Its totient is φ = 26465608.

The previous prime is 52931173. The next prime is 52931233. The reversal of 52931218 is 81213925.

52931218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48121969 + 4809249 = 6937^2 + 2193^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52931218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13232803 + ... + 13232806.

Almost surely, 2^52931218 is an apocalyptic number.

52931218 is a deficient number, since it is larger than the sum of its proper divisors (26465612).

52931218 is a wasteful number, since it uses less digits than its factorization.

52931218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26465611.

The product of its digits is 4320, while the sum is 31.

The square root of 52931218 is about 7275.3843884705. The cubic root of 52931218 is about 375.4660114638.

The spelling of 52931218 in words is "fifty-two million, nine hundred thirty-one thousand, two hundred eighteen".