552311321 has 4 divisors (see below), whose sum is σ = 567238692. Its totient is φ = 537383952.

The previous prime is 552311281. The next prime is 552311359. The reversal of 552311321 is 123113255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 346704400 + 205606921 = 18620^2 + 14339^2 .

It is a cyclic number.

It is not a de Polignac number, because 552311321 - 2⁶ = 552311257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552011321) 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, 7463630 + ... + 7463703.

It is an arithmetic number, because the mean of its divisors is an integer number (141809673).

Almost surely, 2^552311321 is an apocalyptic number.

It is an amenable number.

552311321 is a deficient number, since it is larger than the sum of its proper divisors (14927371).

552311321 is a wasteful number, since it uses less digits than its factorization.

552311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14927370.

The product of its digits is 900, while the sum is 23.

The square root of 552311321 is about 23501.3046659116. The cubic root of 552311321 is about 820.4673723692.

Adding to 552311321 its reverse (123113255), we get a palindrome (675424576).

The spelling of 552311321 in words is "five hundred fifty-two million, three hundred eleven thousand, three hundred twenty-one".