54818789 has 2 divisors, whose sum is σ = 54818790. Its totient is φ = 54818788.

The previous prime is 54818783. The next prime is 54818807. The reversal of 54818789 is 98781845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49140100 + 5678689 = 7010^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 54818789 - 2⁴ = 54818773 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54818783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27409394 + 27409395.

It is an arithmetic number, because the mean of its divisors is an integer number (27409395).

Almost surely, 2^54818789 is an apocalyptic number.

It is an amenable number.

54818789 is a deficient number, since it is larger than the sum of its proper divisors (1).

54818789 is an equidigital number, since it uses as much as digits as its factorization.

54818789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 50.

The square root of 54818789 is about 7403.9711641794. The cubic root of 54818789 is about 379.8771278639.

The spelling of 54818789 in words is "fifty-four million, eight hundred eighteen thousand, seven hundred eighty-nine".