52862221 has 4 divisors (see below), whose sum is σ = 52934112. Its totient is φ = 52790332.

The previous prime is 52862219. The next prime is 52862261. The reversal of 52862221 is 12226825.

52862221 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 52862221 - 2¹ = 52862219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52862221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52862261) 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, 34831 + ... + 36316.

It is an arithmetic number, because the mean of its divisors is an integer number (13233528).

Almost surely, 2^52862221 is an apocalyptic number.

It is an amenable number.

52862221 is a deficient number, since it is larger than the sum of its proper divisors (71891).

52862221 is an equidigital number, since it uses as much as digits as its factorization.

52862221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71890.

The product of its digits is 3840, while the sum is 28.

The square root of 52862221 is about 7270.6410308858. The cubic root of 52862221 is about 375.3027978072.

The spelling of 52862221 in words is "fifty-two million, eight hundred sixty-two thousand, two hundred twenty-one".