554021123 has 2 divisors, whose sum is σ = 554021124. Its totient is φ = 554021122.

The previous prime is 554021113. The next prime is 554021131. The reversal of 554021123 is 321120455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 554021123 - 2⁴ = 554021107 is a prime.

It is a super-2 number, since 2×554021123² = 613878809460362258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (554021113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277010561 + 277010562.

It is an arithmetic number, because the mean of its divisors is an integer number (277010562).

Almost surely, 2^554021123 is an apocalyptic number.

554021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

554021123 is an equidigital number, since it uses as much as digits as its factorization.

554021123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 554021123 is about 23537.6533027403. The cubic root of 554021123 is about 821.3131463546.

Adding to 554021123 its reverse (321120455), we get a palindrome (875141578).

The spelling of 554021123 in words is "five hundred fifty-four million, twenty-one thousand, one hundred twenty-three".