52031218 has 4 divisors (see below), whose sum is σ = 78046830. Its totient is φ = 26015608.

The previous prime is 52031207. The next prime is 52031227. The reversal of 52031218 is 81213025.

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., 41899729 + 10131489 = 6473^2 + 3183^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13007803 + ... + 13007806.

Almost surely, 2^52031218 is an apocalyptic number.

52031218 is a deficient number, since it is larger than the sum of its proper divisors (26015612).

52031218 is a wasteful number, since it uses less digits than its factorization.

52031218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26015611.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 52031218 is about 7213.2668049920. The cubic root of 52031218 is about 373.3257940300.

The spelling of 52031218 in words is "fifty-two million, thirty-one thousand, two hundred eighteen".