52218536705 has 4 divisors (see below), whose sum is σ = 62662244052. Its totient is φ = 41774829360.

The previous prime is 52218536663. The next prime is 52218536707. The reversal of 52218536705 is 50763581225.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9018161296 + 43200375409 = 94964^2 + 207847^2 .

It is not a de Polignac number, because 52218536705 - 2¹⁸ = 52218274561 is a prime.

It is a super-2 number, since 2×52218536705² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52218536707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5221853666 + ... + 5221853675.

It is an arithmetic number, because the mean of its divisors is an integer number (15665561013).

Almost surely, 2^52218536705 is an apocalyptic number.

It is an amenable number.

52218536705 is a deficient number, since it is larger than the sum of its proper divisors (10443707347).

52218536705 is a wasteful number, since it uses less digits than its factorization.

52218536705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443707346.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 52218536705 in words is "fifty-two billion, two hundred eighteen million, five hundred thirty-six thousand, seven hundred five".