549587089 has 2 divisors, whose sum is σ = 549587090. Its totient is φ = 549587088.

The previous prime is 549587053. The next prime is 549587099. The reversal of 549587089 is 980785945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 546764689 + 2822400 = 23383^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 549587089 - 2²⁹ = 12716177 is a prime.

It is not a weakly prime, because it can be changed into another prime (549587099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274793544 + 274793545.

It is an arithmetic number, because the mean of its divisors is an integer number (274793545).

Almost surely, 2^549587089 is an apocalyptic number.

It is an amenable number.

549587089 is a deficient number, since it is larger than the sum of its proper divisors (1).

549587089 is an equidigital number, since it uses as much as digits as its factorization.

549587089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 549587089 is about 23443.2738541356. The cubic root of 549587089 is about 819.1161848664.

The spelling of 549587089 in words is "five hundred forty-nine million, five hundred eighty-seven thousand, eighty-nine".