54433889 has 2 divisors, whose sum is σ = 54433890. Its totient is φ = 54433888.

The previous prime is 54433877. The next prime is 54433891. The reversal of 54433889 is 98833445.

54433889 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., 54390625 + 43264 = 7375^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 54433889 - 2⁸ = 54433633 is a prime.

Together with 54433891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54433859) 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, 27216944 + 27216945.

It is an arithmetic number, because the mean of its divisors is an integer number (27216945).

Almost surely, 2^54433889 is an apocalyptic number.

It is an amenable number.

54433889 is a deficient number, since it is larger than the sum of its proper divisors (1).

54433889 is an equidigital number, since it uses as much as digits as its factorization.

54433889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 54433889 is about 7377.9325694940. The cubic root of 54433889 is about 378.9859598487.

The spelling of 54433889 in words is "fifty-four million, four hundred thirty-three thousand, eight hundred eighty-nine".