549725873 has 2 divisors, whose sum is σ = 549725874. Its totient is φ = 549725872.

The previous prime is 549725831. The next prime is 549725887. The reversal of 549725873 is 378527945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516743824 + 32982049 = 22732^2 + 5743^2 .

It is a cyclic number.

It is not a de Polignac number, because 549725873 - 2⁶ = 549725809 is a prime.

It is a super-2 number, since 2×549725873² = 604397070891224258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (549725173) 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, 274862936 + 274862937.

It is an arithmetic number, because the mean of its divisors is an integer number (274862937).

Almost surely, 2^549725873 is an apocalyptic number.

It is an amenable number.

549725873 is a deficient number, since it is larger than the sum of its proper divisors (1).

549725873 is an equidigital number, since it uses as much as digits as its factorization.

549725873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 50.

The square root of 549725873 is about 23446.2336634266. The cubic root of 549725873 is about 819.1851279301.

The spelling of 549725873 in words is "five hundred forty-nine million, seven hundred twenty-five thousand, eight hundred seventy-three".