552321 has 24 divisors (see below), whose sum is σ = 995904. Its totient is φ = 286560.

The previous prime is 552317. The next prime is 552341. The reversal of 552321 is 123255.

It is a happy number.

It is not a de Polignac number, because 552321 - 2² = 552317 is a prime.

552321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 552294 and 552303.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 552321.

It is not an unprimeable number, because it can be changed into a prime (552301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295 + ... + 1091.

It is an arithmetic number, because the mean of its divisors is an integer number (41496).

2⁵⁵²³²¹ is an apocalyptic number.

It is an amenable number.

552321 is a deficient number, since it is larger than the sum of its proper divisors (443583).

552321 is a wasteful number, since it uses less digits than its factorization.

552321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 818 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 552321 is about 743.1830191817. The cubic root of 552321 is about 82.0472165111.

Adding to 552321 its reverse (123255), we get a palindrome (675576).

It can be divided in two parts, 5 and 52321, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 552321 in words is "five hundred fifty-two thousand, three hundred twenty-one".