554122991 has 2 divisors, whose sum is σ = 554122992. Its totient is φ = 554122990.

The previous prime is 554122967. The next prime is 554122999. The reversal of 554122991 is 199221455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 554122991 - 2⁶ = 554122927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554122999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277061495 + 277061496.

It is an arithmetic number, because the mean of its divisors is an integer number (277061496).

Almost surely, 2^554122991 is an apocalyptic number.

554122991 is a deficient number, since it is larger than the sum of its proper divisors (1).

554122991 is an equidigital number, since it uses as much as digits as its factorization.

554122991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 38.

The square root of 554122991 is about 23539.8171403263. The cubic root of 554122991 is about 821.3634816196.

The spelling of 554122991 in words is "five hundred fifty-four million, one hundred twenty-two thousand, nine hundred ninety-one".