554940443 has 2 divisors, whose sum is σ = 554940444. Its totient is φ = 554940442.

The previous prime is 554940409. The next prime is 554940457. The reversal of 554940443 is 344049455.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-554940443 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 554940397 and 554940406.

It is not a weakly prime, because it can be changed into another prime (554940943) 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, 277470221 + 277470222.

It is an arithmetic number, because the mean of its divisors is an integer number (277470222).

Almost surely, 2^554940443 is an apocalyptic number.

554940443 is a deficient number, since it is larger than the sum of its proper divisors (1).

554940443 is an equidigital number, since it uses as much as digits as its factorization.

554940443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 554940443 is about 23557.1739179385. The cubic root of 554940443 is about 821.7671797973.

Adding to 554940443 its reverse (344049455), we get a palindrome (898989898).

The spelling of 554940443 in words is "five hundred fifty-four million, nine hundred forty thousand, four hundred forty-three".