549667493 has 2 divisors, whose sum is σ = 549667494. Its totient is φ = 549667492.

The previous prime is 549667487. The next prime is 549667499. The reversal of 549667493 is 394766945.

It is a balanced prime because it is at equal distance from previous prime (549667487) and next prime (549667499).

It can be written as a sum of positive squares in only one way, i.e., 502566724 + 47100769 = 22418^2 + 6863^2 .

It is a cyclic number.

It is not a de Polignac number, because 549667493 - 2¹⁶ = 549601957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549667499) 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, 274833746 + 274833747.

It is an arithmetic number, because the mean of its divisors is an integer number (274833747).

Almost surely, 2^549667493 is an apocalyptic number.

It is an amenable number.

549667493 is a deficient number, since it is larger than the sum of its proper divisors (1).

549667493 is an equidigital number, since it uses as much as digits as its factorization.

549667493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 53.

The square root of 549667493 is about 23444.9886542945. The cubic root of 549667493 is about 819.1561281909.

The spelling of 549667493 in words is "five hundred forty-nine million, six hundred sixty-seven thousand, four hundred ninety-three".