549631469 has 2 divisors, whose sum is σ = 549631470. Its totient is φ = 549631468.

The previous prime is 549631451. The next prime is 549631477. The reversal of 549631469 is 964136945.

It is a happy number.

549631469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416690569 + 132940900 = 20413^2 + 11530^2 .

It is a cyclic number.

It is not a de Polignac number, because 549631469 - 2²⁴ = 532854253 is a prime.

It is a super-2 number, since 2×549631469² = 604189503430195922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549631499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274815734 + 274815735.

It is an arithmetic number, because the mean of its divisors is an integer number (274815735).

Almost surely, 2^549631469 is an apocalyptic number.

It is an amenable number.

549631469 is a deficient number, since it is larger than the sum of its proper divisors (1).

549631469 is an equidigital number, since it uses as much as digits as its factorization.

549631469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 47.

The square root of 549631469 is about 23444.2203751799. The cubic root of 549631469 is about 819.1382325689.

The spelling of 549631469 in words is "five hundred forty-nine million, six hundred thirty-one thousand, four hundred sixty-nine".