549481019 has 2 divisors, whose sum is σ = 549481020. Its totient is φ = 549481018.

The previous prime is 549480991. The next prime is 549481027. The reversal of 549481019 is 910184945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549481019 - 2¹⁶ = 549415483 is a prime.

It is a super-2 number, since 2×549481019² = 603858780482556722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (549481069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274740509 + 274740510.

It is an arithmetic number, because the mean of its divisors is an integer number (274740510).

Almost surely, 2^549481019 is an apocalyptic number.

549481019 is a deficient number, since it is larger than the sum of its proper divisors (1).

549481019 is an equidigital number, since it uses as much as digits as its factorization.

549481019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 549481019 is about 23441.0114756168. The cubic root of 549481019 is about 819.0634851545.

The spelling of 549481019 in words is "five hundred forty-nine million, four hundred eighty-one thousand, nineteen".