52216071 has 8 divisors (see below), whose sum is σ = 70024560. Its totient is φ = 34609152.

The previous prime is 52216069. The next prime is 52216079. The reversal of 52216071 is 17061225.

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

It is not a de Polignac number, because 52216071 - 2¹ = 52216069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52216079) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 49786 + ... + 50823.

It is an arithmetic number, because the mean of its divisors is an integer number (8753070).

Almost surely, 2^52216071 is an apocalyptic number.

52216071 is a deficient number, since it is larger than the sum of its proper divisors (17808489).

52216071 is a wasteful number, since it uses less digits than its factorization.

52216071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100785.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 52216071 is about 7226.0688482743. The cubic root of 52216071 is about 373.7673803918.

Adding to 52216071 its reverse (17061225), we get a palindrome (69277296).

The spelling of 52216071 in words is "fifty-two million, two hundred sixteen thousand, seventy-one".