54566881 has 2 divisors, whose sum is σ = 54566882. Its totient is φ = 54566880.

The previous prime is 54566873. The next prime is 54566887. The reversal of 54566881 is 18866545.

54566881 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., 44675856 + 9891025 = 6684^2 + 3145^2 .

It is a cyclic number.

It is not a de Polignac number, because 54566881 - 2³ = 54566873 is a prime.

It is a super-2 number, since 2×54566881² = 5955089004136322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54566887) 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, 27283440 + 27283441.

It is an arithmetic number, because the mean of its divisors is an integer number (27283441).

Almost surely, 2^54566881 is an apocalyptic number.

It is an amenable number.

54566881 is a deficient number, since it is larger than the sum of its proper divisors (1).

54566881 is an equidigital number, since it uses as much as digits as its factorization.

54566881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 43.

The square root of 54566881 is about 7386.9398941646. The cubic root of 54566881 is about 379.2943529602.

The spelling of 54566881 in words is "fifty-four million, five hundred sixty-six thousand, eight hundred eighty-one".