548540749 has 2 divisors, whose sum is σ = 548540750. Its totient is φ = 548540748.

The previous prime is 548540711. The next prime is 548540767. The reversal of 548540749 is 947045845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490932649 + 57608100 = 22157^2 + 7590^2 .

It is a cyclic number.

It is not a de Polignac number, because 548540749 - 2¹⁹ = 548016461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 548540699 and 548540708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548540549) 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 as a sum of consecutive naturals, namely, 274270374 + 274270375.

It is an arithmetic number, because the mean of its divisors is an integer number (274270375).

Almost surely, 2^548540749 is an apocalyptic number.

It is an amenable number.

548540749 is a deficient number, since it is larger than the sum of its proper divisors (1).

548540749 is an equidigital number, since it uses as much as digits as its factorization.

548540749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 548540749 is about 23420.9467998200. The cubic root of 548540749 is about 818.5960255565.

The spelling of 548540749 in words is "five hundred forty-eight million, five hundred forty thousand, seven hundred forty-nine".