54668881 has 2 divisors, whose sum is σ = 54668882. Its totient is φ = 54668880.

The previous prime is 54668843. The next prime is 54668899. The reversal of 54668881 is 18886645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51710481 + 2958400 = 7191^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 54668881 - 2¹³ = 54660689 is a prime.

It is a super-2 number, since 2×54668881² = 5977373099584322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54668381) 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, 27334440 + 27334441.

It is an arithmetic number, because the mean of its divisors is an integer number (27334441).

Almost surely, 2^54668881 is an apocalyptic number.

It is an amenable number.

54668881 is a deficient number, since it is larger than the sum of its proper divisors (1).

54668881 is an equidigital number, since it uses as much as digits as its factorization.

54668881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 46.

The square root of 54668881 is about 7393.8407475412. The cubic root of 54668881 is about 379.5305398329.

The spelling of 54668881 in words is "fifty-four million, six hundred sixty-eight thousand, eight hundred eighty-one".