54664081 has 2 divisors, whose sum is σ = 54664082. Its totient is φ = 54664080.

The previous prime is 54664069. The next prime is 54664087. The reversal of 54664081 is 18046645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54523456 + 140625 = 7384^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 54664081 - 2⁹ = 54663569 is a prime.

It is a super-2 number, since 2×54664081² = 5976323503149122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54664087) 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, 27332040 + 27332041.

It is an arithmetic number, because the mean of its divisors is an integer number (27332041).

Almost surely, 2^54664081 is an apocalyptic number.

It is an amenable number.

54664081 is a deficient number, since it is larger than the sum of its proper divisors (1).

54664081 is an equidigital number, since it uses as much as digits as its factorization.

54664081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 54664081 is about 7393.5161459214. The cubic root of 54664081 is about 379.5194317468.

The spelling of 54664081 in words is "fifty-four million, six hundred sixty-four thousand, eighty-one".