554330261 has 2 divisors, whose sum is σ = 554330262. Its totient is φ = 554330260.

The previous prime is 554330207. The next prime is 554330297. The reversal of 554330261 is 162033455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524135236 + 30195025 = 22894^2 + 5495^2 .

It is a cyclic number.

It is not a de Polignac number, because 554330261 - 2⁶ = 554330197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554390261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277165130 + 277165131.

It is an arithmetic number, because the mean of its divisors is an integer number (277165131).

Almost surely, 2^554330261 is an apocalyptic number.

It is an amenable number.

554330261 is a deficient number, since it is larger than the sum of its proper divisors (1).

554330261 is an equidigital number, since it uses as much as digits as its factorization.

554330261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 554330261 is about 23544.2192692814. The cubic root of 554330261 is about 821.4658793360.

The spelling of 554330261 in words is "five hundred fifty-four million, three hundred thirty thousand, two hundred sixty-one".