562166221 has 4 divisors (see below), whose sum is σ = 568939392. Its totient is φ = 555393052.

The previous prime is 562166191. The next prime is 562166239. The reversal of 562166221 is 122661265.

562166221 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 562166221 - 2⁷ = 562166093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (562166261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3386461 + ... + 3386626.

It is an arithmetic number, because the mean of its divisors is an integer number (142234848).

Almost surely, 2^562166221 is an apocalyptic number.

It is an amenable number.

562166221 is a deficient number, since it is larger than the sum of its proper divisors (6773171).

562166221 is an equidigital number, since it uses as much as digits as its factorization.

562166221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773170.

The product of its digits is 8640, while the sum is 31.

The square root of 562166221 is about 23710.0447279207. The cubic root of 562166221 is about 825.3185037733.

The spelling of 562166221 in words is "five hundred sixty-two million, one hundred sixty-six thousand, two hundred twenty-one".