552021 has 4 divisors (see below), whose sum is σ = 736032. Its totient is φ = 368012.

The previous prime is 552011. The next prime is 552029. The reversal of 552021 is 120255.

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 552021 - 2¹⁰ = 550997 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 552021.

It is not an unprimeable number, because it can be changed into a prime (552029) 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, 92001 + ... + 92006.

It is an arithmetic number, because the mean of its divisors is an integer number (184008).

2⁵⁵²⁰²¹ is an apocalyptic number.

It is an amenable number.

552021 is a deficient number, since it is larger than the sum of its proper divisors (184011).

552021 is a wasteful number, since it uses less digits than its factorization.

552021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184010.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 552021 is about 742.9811572308. The cubic root of 552021 is about 82.0323588331.

Adding to 552021 its reverse (120255), we get a palindrome (672276).

The spelling of 552021 in words is "five hundred fifty-two thousand, twenty-one".