548065993 has 4 divisors (see below), whose sum is σ = 548727940. Its totient is φ = 547404048.

The previous prime is 548065967. The next prime is 548065997. The reversal of 548065993 is 399560845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 236790544 + 311275449 = 15388^2 + 17643^2 .

It is a cyclic number.

It is not a de Polignac number, because 548065993 - 2¹⁷ = 547934921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548065997) 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 in 3 ways as a sum of consecutive naturals, for example, 329730 + ... + 331387.

It is an arithmetic number, because the mean of its divisors is an integer number (137181985).

Almost surely, 2^548065993 is an apocalyptic number.

It is an amenable number.

548065993 is a deficient number, since it is larger than the sum of its proper divisors (661947).

548065993 is an equidigital number, since it uses as much as digits as its factorization.

548065993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661946.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 548065993 is about 23410.8093196284. The cubic root of 548065993 is about 818.3597954322.

The spelling of 548065993 in words is "five hundred forty-eight million, sixty-five thousand, nine hundred ninety-three".