548909111 has 4 divisors (see below), whose sum is σ = 550357800. Its totient is φ = 547460424.

The previous prime is 548909087. The next prime is 548909161. The reversal of 548909111 is 111909845.

548909111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 548909111 - 2⁶ = 548909047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548909161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723776 + ... + 724533.

It is an arithmetic number, because the mean of its divisors is an integer number (137589450).

Almost surely, 2^548909111 is an apocalyptic number.

548909111 is a deficient number, since it is larger than the sum of its proper divisors (1448689).

548909111 is a wasteful number, since it uses less digits than its factorization.

548909111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448688.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 548909111 is about 23428.8094234428. The cubic root of 548909111 is about 818.7792220326.

The spelling of 548909111 in words is "five hundred forty-eight million, nine hundred nine thousand, one hundred eleven".