553630123 has 2 divisors, whose sum is σ = 553630124. Its totient is φ = 553630122.

The previous prime is 553630087. The next prime is 553630127. The reversal of 553630123 is 321036355.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553630123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 553630091 and 553630100.

It is not a weakly prime, because it can be changed into another prime (553630127) 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, 276815061 + 276815062.

It is an arithmetic number, because the mean of its divisors is an integer number (276815062).

Almost surely, 2^553630123 is an apocalyptic number.

553630123 is a deficient number, since it is larger than the sum of its proper divisors (1).

553630123 is an equidigital number, since it uses as much as digits as its factorization.

553630123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 553630123 is about 23529.3459960110. The cubic root of 553630123 is about 821.1198871670.

Adding to 553630123 its reverse (321036355), we get a palindrome (874666478).

The spelling of 553630123 in words is "five hundred fifty-three million, six hundred thirty thousand, one hundred twenty-three".