548609513 has 4 divisors (see below), whose sum is σ = 552614100. Its totient is φ = 544604928.

The previous prime is 548609459. The next prime is 548609549. The reversal of 548609513 is 315906845.

548609513 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 can be written as a sum of positive squares in 2 ways, for example, as 449567209 + 99042304 = 21203^2 + 9952^2 .

It is a cyclic number.

It is not a de Polignac number, because 548609513 - 2¹² = 548605417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (548609813) 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, 2002088 + ... + 2002361.

It is an arithmetic number, because the mean of its divisors is an integer number (138153525).

Almost surely, 2^548609513 is an apocalyptic number.

It is an amenable number.

548609513 is a deficient number, since it is larger than the sum of its proper divisors (4004587).

548609513 is a wasteful number, since it uses less digits than its factorization.

548609513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004586.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 548609513 is about 23422.4147559555. The cubic root of 548609513 is about 818.6302299951.

The spelling of 548609513 in words is "five hundred forty-eight million, six hundred nine thousand, five hundred thirteen".