549845873 has 2 divisors, whose sum is σ = 549845874. Its totient is φ = 549845872.

The previous prime is 549845869. The next prime is 549845897. The reversal of 549845873 is 378548945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425679424 + 124166449 = 20632^2 + 11143^2 .

It is a cyclic number.

It is not a de Polignac number, because 549845873 - 2² = 549845869 is a prime.

It is not a weakly prime, because it can be changed into another prime (549845173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274922936 + 274922937.

It is an arithmetic number, because the mean of its divisors is an integer number (274922937).

Almost surely, 2^549845873 is an apocalyptic number.

It is an amenable number.

549845873 is a deficient number, since it is larger than the sum of its proper divisors (1).

549845873 is an equidigital number, since it uses as much as digits as its factorization.

549845873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 53.

The square root of 549845873 is about 23448.7925701943. The cubic root of 549845873 is about 819.2447304024.

The spelling of 549845873 in words is "five hundred forty-nine million, eight hundred forty-five thousand, eight hundred seventy-three".