52018647 has 8 divisors (see below), whose sum is σ = 70335360. Its totient is φ = 34190520.

The previous prime is 52018619. The next prime is 52018667. The reversal of 52018647 is 74681025.

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

It is a de Polignac number, because none of the positive numbers 2^k-52018647 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52018607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121897 + ... + 122322.

It is an arithmetic number, because the mean of its divisors is an integer number (8791920).

Almost surely, 2^52018647 is an apocalyptic number.

52018647 is a deficient number, since it is larger than the sum of its proper divisors (18316713).

52018647 is a wasteful number, since it uses less digits than its factorization.

52018647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244293.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 52018647 is about 7212.3953718581. The cubic root of 52018647 is about 373.2957258213.

The spelling of 52018647 in words is "fifty-two million, eighteen thousand, six hundred forty-seven".