52216547 has 4 divisors (see below), whose sum is σ = 52235496. Its totient is φ = 52197600.

The previous prime is 52216543. The next prime is 52216553. The reversal of 52216547 is 74561225.

52216547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 52216547 - 2² = 52216543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52216543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4454 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (13058874).

Almost surely, 2^52216547 is an apocalyptic number.

52216547 is a deficient number, since it is larger than the sum of its proper divisors (18949).

52216547 is a wasteful number, since it uses less digits than its factorization.

52216547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18948.

The product of its digits is 16800, while the sum is 32.

The square root of 52216547 is about 7226.1017845032. The cubic root of 52216547 is about 373.7685161388.

The spelling of 52216547 in words is "fifty-two million, two hundred sixteen thousand, five hundred forty-seven".