554020081 has 2 divisors, whose sum is σ = 554020082. Its totient is φ = 554020080.

The previous prime is 554020079. The next prime is 554020087. The reversal of 554020081 is 180020455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 552015025 + 2005056 = 23495^2 + 1416^2 .

It is a cyclic number.

It is not a de Polignac number, because 554020081 - 2¹ = 554020079 is a prime.

It is a super-2 number, since 2×554020081² = 613876500302493122, which contains 22 as substring.

Together with 554020079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (554020087) 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, 277010040 + 277010041.

It is an arithmetic number, because the mean of its divisors is an integer number (277010041).

Almost surely, 2^554020081 is an apocalyptic number.

It is an amenable number.

554020081 is a deficient number, since it is larger than the sum of its proper divisors (1).

554020081 is an equidigital number, since it uses as much as digits as its factorization.

554020081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 554020081 is about 23537.6311679829. The cubic root of 554020081 is about 821.3126314471.

The spelling of 554020081 in words is "five hundred fifty-four million, twenty thousand, eighty-one".