52558217 has 4 divisors (see below), whose sum is σ = 53342736. Its totient is φ = 51773700.

The previous prime is 52558211. The next prime is 52558229. The reversal of 52558217 is 71285525.

52558217 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52558217 - 2⁶ = 52558153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52558211) 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, 392159 + ... + 392292.

It is an arithmetic number, because the mean of its divisors is an integer number (13335684).

Almost surely, 2^52558217 is an apocalyptic number.

It is an amenable number.

52558217 is a deficient number, since it is larger than the sum of its proper divisors (784519).

52558217 is an equidigital number, since it uses as much as digits as its factorization.

52558217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784518.

The product of its digits is 28000, while the sum is 35.

The square root of 52558217 is about 7249.7046146722. The cubic root of 52558217 is about 374.5819744819.

The spelling of 52558217 in words is "fifty-two million, five hundred fifty-eight thousand, two hundred seventeen".