554398081 has 2 divisors, whose sum is σ = 554398082. Its totient is φ = 554398080.

The previous prime is 554398051. The next prime is 554398129. The reversal of 554398081 is 180893455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317730625 + 236667456 = 17825^2 + 15384^2 .

It is a cyclic number.

It is not a de Polignac number, because 554398081 - 2¹⁷ = 554267009 is a prime.

It is a super-2 number, since 2×554398081² = 614714464432965122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (554398051) 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, 277199040 + 277199041.

It is an arithmetic number, because the mean of its divisors is an integer number (277199041).

Almost surely, 2^554398081 is an apocalyptic number.

It is an amenable number.

554398081 is a deficient number, since it is larger than the sum of its proper divisors (1).

554398081 is an equidigital number, since it uses as much as digits as its factorization.

554398081 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 43.

The square root of 554398081 is about 23545.6594938430. The cubic root of 554398081 is about 821.4993789469.

The spelling of 554398081 in words is "five hundred fifty-four million, three hundred ninety-eight thousand, eighty-one".