549019 has 2 divisors, whose sum is σ = 549020. Its totient is φ = 549018.

The previous prime is 549013. The next prime is 549023. The reversal of 549019 is 910945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549019 - 2³ = 549011 is a prime.

It is a super-2 number, since 2×549019² = 602843724722, which contains 22 as substring.

It is a nialpdrome in base 7.

It is not a weakly prime, because it can be changed into another prime (549011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274509 + 274510.

It is an arithmetic number, because the mean of its divisors is an integer number (274510).

2⁵⁴⁹⁰¹⁹ is an apocalyptic number.

549019 is a deficient number, since it is larger than the sum of its proper divisors (1).

549019 is an equidigital number, since it uses as much as digits as its factorization.

549019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 549019 is about 740.9581634613. The cubic root of 549019 is about 81.8833856959.

The spelling of 549019 in words is "five hundred forty-nine thousand, nineteen".