548179949 has 4 divisors (see below), whose sum is σ = 548227740. Its totient is φ = 548132160.

The previous prime is 548179937. The next prime is 548179969. The reversal of 548179949 is 949971845.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 461820100 + 86359849 = 21490^2 + 9293^2 .

It is a cyclic number.

It is not a de Polignac number, because 548179949 - 2⁸ = 548179693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 548179894 and 548179903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548179969) 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, 4787 + ... + 33455.

It is an arithmetic number, because the mean of its divisors is an integer number (137056935).

Almost surely, 2^548179949 is an apocalyptic number.

It is an amenable number.

548179949 is a deficient number, since it is larger than the sum of its proper divisors (47791).

548179949 is a wasteful number, since it uses less digits than its factorization.

548179949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47790.

The product of its digits is 3265920, while the sum is 56.

The square root of 548179949 is about 23413.2430261167. The cubic root of 548179949 is about 818.4165103457.

The spelling of 548179949 in words is "five hundred forty-eight million, one hundred seventy-nine thousand, nine hundred forty-nine".