548111409 has 8 divisors (see below), whose sum is σ = 741108672. Its totient is φ = 360260880.

The previous prime is 548111407. The next prime is 548111419. The reversal of 548111409 is 904111845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 548111409 - 2¹ = 548111407 is a prime.

It is a super-2 number, since 2×548111409² = 600852233351930562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 548111409.

It is not an unprimeable number, because it can be changed into a prime (548111407) 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 in 7 ways as a sum of consecutive naturals, for example, 1286434 + ... + 1286859.

It is an arithmetic number, because the mean of its divisors is an integer number (92638584).

Almost surely, 2^548111409 is an apocalyptic number.

It is an amenable number.

548111409 is a deficient number, since it is larger than the sum of its proper divisors (192997263).

548111409 is a wasteful number, since it uses less digits than its factorization.

548111409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573367.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 548111409 is about 23411.7792788160. The cubic root of 548111409 is about 818.3823995239.

The spelling of 548111409 in words is "five hundred forty-eight million, one hundred eleven thousand, four hundred nine".