554405549 has 2 divisors, whose sum is σ = 554405550. Its totient is φ = 554405548.

The previous prime is 554405539. The next prime is 554405563. The reversal of 554405549 is 945504455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482461225 + 71944324 = 21965^2 + 8482^2 .

It is a cyclic number.

It is not a de Polignac number, because 554405549 - 2¹⁶ = 554340013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554405539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277202774 + 277202775.

It is an arithmetic number, because the mean of its divisors is an integer number (277202775).

Almost surely, 2^554405549 is an apocalyptic number.

It is an amenable number.

554405549 is a deficient number, since it is larger than the sum of its proper divisors (1).

554405549 is an equidigital number, since it uses as much as digits as its factorization.

554405549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 41.

The square root of 554405549 is about 23545.8180788012. The cubic root of 554405549 is about 821.5030675899.

The spelling of 554405549 in words is "five hundred fifty-four million, four hundred five thousand, five hundred forty-nine".