552320623 has 2 divisors, whose sum is σ = 552320624. Its totient is φ = 552320622.

The previous prime is 552320611. The next prime is 552320647. The reversal of 552320623 is 326023255.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552320623 is a prime.

It is a super-2 number, since 2×552320623² = 610116141182216258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 552320591 and 552320600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (552320663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276160311 + 276160312.

It is an arithmetic number, because the mean of its divisors is an integer number (276160312).

Almost surely, 2^552320623 is an apocalyptic number.

552320623 is a deficient number, since it is larger than the sum of its proper divisors (1).

552320623 is an equidigital number, since it uses as much as digits as its factorization.

552320623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 552320623 is about 23501.5025689848. The cubic root of 552320623 is about 820.4719784336.

Adding to 552320623 its reverse (326023255), we get a palindrome (878343878).

The spelling of 552320623 in words is "five hundred fifty-two million, three hundred twenty thousand, six hundred twenty-three".