545222211 has 8 divisors (see below), whose sum is σ = 727087440. Its totient is φ = 363419232.

The previous prime is 545222191. The next prime is 545222239. The reversal of 545222211 is 112222545.

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

It is not a de Polignac number, because 545222211 - 2⁵ = 545222179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545222261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11701 + ... + 35033.

It is an arithmetic number, because the mean of its divisors is an integer number (90885930).

Almost surely, 2^545222211 is an apocalyptic number.

545222211 is a deficient number, since it is larger than the sum of its proper divisors (181865229).

545222211 is a wasteful number, since it uses less digits than its factorization.

545222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31125.

The product of its digits is 1600, while the sum is 24.

The square root of 545222211 is about 23349.9938115623. The cubic root of 545222211 is about 816.9419165116.

Adding to 545222211 its reverse (112222545), we get a palindrome (657444756).

The spelling of 545222211 in words is "five hundred forty-five million, two hundred twenty-two thousand, two hundred eleven".