552105221 has 8 divisors (see below), whose sum is σ = 566998488. Its totient is φ = 537280000.

The previous prime is 552105199. The next prime is 552105223. The reversal of 552105221 is 122501255.

It can be written as a sum of positive squares in 4 ways, for example, as 5013121 + 547092100 = 2239^2 + 23390^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 552105221 - 2²⁶ = 484996357 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 (552105223) 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, 350 + ... + 33231.

It is an arithmetic number, because the mean of its divisors is an integer number (70874811).

Almost surely, 2^552105221 is an apocalyptic number.

It is an amenable number.

552105221 is a deficient number, since it is larger than the sum of its proper divisors (14893267).

552105221 is a wasteful number, since it uses less digits than its factorization.

552105221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34023.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 552105221 is about 23496.9193938269. The cubic root of 552105221 is about 820.3653047146.

Adding to 552105221 its reverse (122501255), we get a palindrome (674606476).

The spelling of 552105221 in words is "five hundred fifty-two million, one hundred five thousand, two hundred twenty-one".