548442977 has 4 divisors (see below), whose sum is σ = 550718916. Its totient is φ = 546167040.

The previous prime is 548442949. The next prime is 548442991. The reversal of 548442977 is 779244845.

It is a happy number.

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 448422976 + 100020001 = 21176^2 + 10001^2 .

It is a cyclic number.

It is not a de Polignac number, because 548442977 - 2¹⁶ = 548377441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548442907) 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 3 ways as a sum of consecutive naturals, for example, 1137608 + ... + 1138089.

It is an arithmetic number, because the mean of its divisors is an integer number (137679729).

Almost surely, 2^548442977 is an apocalyptic number.

It is an amenable number.

548442977 is a deficient number, since it is larger than the sum of its proper divisors (2275939).

548442977 is a wasteful number, since it uses less digits than its factorization.

548442977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275938.

The product of its digits is 2257920, while the sum is 50.

The square root of 548442977 is about 23418.8594299552. The cubic root of 548442977 is about 818.5473870999.

The spelling of 548442977 in words is "five hundred forty-eight million, four hundred forty-two thousand, nine hundred seventy-seven".