54815443 has 2 divisors, whose sum is σ = 54815444. Its totient is φ = 54815442.

The previous prime is 54815357. The next prime is 54815459. The reversal of 54815443 is 34451845.

54815443 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 is a cyclic number.

It is not a de Polignac number, because 54815443 - 2¹³ = 54807251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54815399 and 54815408.

It is not a weakly prime, because it can be changed into another prime (54815473) 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, 27407721 + 27407722.

It is an arithmetic number, because the mean of its divisors is an integer number (27407722).

Almost surely, 2^54815443 is an apocalyptic number.

54815443 is a deficient number, since it is larger than the sum of its proper divisors (1).

54815443 is an equidigital number, since it uses as much as digits as its factorization.

54815443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 34.

The square root of 54815443 is about 7403.7452009101. The cubic root of 54815443 is about 379.8693987941.

The spelling of 54815443 in words is "fifty-four million, eight hundred fifteen thousand, four hundred forty-three".