52216705 has 4 divisors (see below), whose sum is σ = 62660052. Its totient is φ = 41773360.

The previous prime is 52216699. The next prime is 52216727. The reversal of 52216705 is 50761225.

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 40043584 + 12173121 = 6328^2 + 3489^2 .

It is not a de Polignac number, because 52216705 - 2¹⁷ = 52085633 is a prime.

It is a Duffinian number.

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, 5221666 + ... + 5221675.

It is an arithmetic number, because the mean of its divisors is an integer number (15665013).

Almost surely, 2^52216705 is an apocalyptic number.

It is an amenable number.

52216705 is a deficient number, since it is larger than the sum of its proper divisors (10443347).

52216705 is a wasteful number, since it uses less digits than its factorization.

52216705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443346.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 52216705 is about 7226.1127170838. The cubic root of 52216705 is about 373.7688931289.

The spelling of 52216705 in words is "fifty-two million, two hundred sixteen thousand, seven hundred five".