549471457 has 2 divisors, whose sum is σ = 549471458. Its totient is φ = 549471456.

The previous prime is 549471413. The next prime is 549471487. The reversal of 549471457 is 754174945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530426961 + 19044496 = 23031^2 + 4364^2 .

It is a cyclic number.

It is not a de Polignac number, because 549471457 - 2¹⁵ = 549438689 is a prime.

It is not a weakly prime, because it can be changed into another prime (549471487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274735728 + 274735729.

It is an arithmetic number, because the mean of its divisors is an integer number (274735729).

Almost surely, 2^549471457 is an apocalyptic number.

It is an amenable number.

549471457 is a deficient number, since it is larger than the sum of its proper divisors (1).

549471457 is an equidigital number, since it uses as much as digits as its factorization.

549471457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 46.

The square root of 549471457 is about 23440.8075159539. The cubic root of 549471457 is about 819.0587340468.

The spelling of 549471457 in words is "five hundred forty-nine million, four hundred seventy-one thousand, four hundred fifty-seven".