54016661 has 2 divisors, whose sum is σ = 54016662. Its totient is φ = 54016660.

The previous prime is 54016637. The next prime is 54016679. The reversal of 54016661 is 16661045.

54016661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53567761 + 448900 = 7319^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 54016661 - 2⁶ = 54016597 is a prime.

It is a super-3 number, since 3×54016661³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54016631) 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, 27008330 + 27008331.

It is an arithmetic number, because the mean of its divisors is an integer number (27008331).

Almost surely, 2^54016661 is an apocalyptic number.

It is an amenable number.

54016661 is a deficient number, since it is larger than the sum of its proper divisors (1).

54016661 is an equidigital number, since it uses as much as digits as its factorization.

54016661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 54016661 is about 7349.6027783820. The cubic root of 54016661 is about 378.0151842020.

The spelling of 54016661 in words is "fifty-four million, sixteen thousand, six hundred sixty-one".