554503123 has 2 divisors, whose sum is σ = 554503124. Its totient is φ = 554503122.

The previous prime is 554503121. The next prime is 554503139. The reversal of 554503123 is 321305455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 554503123 - 2¹ = 554503121 is a prime.

Together with 554503121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 554503091 and 554503100.

It is not a weakly prime, because it can be changed into another prime (554503121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277251561 + 277251562.

It is an arithmetic number, because the mean of its divisors is an integer number (277251562).

Almost surely, 2^554503123 is an apocalyptic number.

554503123 is a deficient number, since it is larger than the sum of its proper divisors (1).

554503123 is an equidigital number, since it uses as much as digits as its factorization.

554503123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 554503123 is about 23547.8899904004. The cubic root of 554503123 is about 821.5512589295.

Adding to 554503123 its reverse (321305455), we get a palindrome (875808578).

The spelling of 554503123 in words is "five hundred fifty-four million, five hundred three thousand, one hundred twenty-three".