548066729 has 4 divisors (see below), whose sum is σ = 626361984. Its totient is φ = 469771476.

The previous prime is 548066711. The next prime is 548066759. The reversal of 548066729 is 927660845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 548066729 - 2¹² = 548062633 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 (548066759) 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, 39147617 + ... + 39147630.

It is an arithmetic number, because the mean of its divisors is an integer number (156590496).

Almost surely, 2^548066729 is an apocalyptic number.

It is an amenable number.

548066729 is a deficient number, since it is larger than the sum of its proper divisors (78295255).

548066729 is an equidigital number, since it uses as much as digits as its factorization.

548066729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78295254.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 548066729 is about 23410.8250388576. The cubic root of 548066729 is about 818.3601617583.

The spelling of 548066729 in words is "five hundred forty-eight million, sixty-six thousand, seven hundred twenty-nine".