549039566249 has 2 divisors, whose sum is σ = 549039566250. Its totient is φ = 549039566248.

The previous prime is 549039566177. The next prime is 549039566291. The reversal of 549039566249 is 942665930945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392761663849 + 156277902400 = 626707^2 + 395320^2 .

It is a cyclic number.

It is not a de Polignac number, because 549039566249 - 2²⁴ = 549022789033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549039566191 and 549039566200.

It is not a weakly prime, because it can be changed into another prime (549039566849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274519783124 + 274519783125.

It is an arithmetic number, because the mean of its divisors is an integer number (274519783125).

Almost surely, 2^549039566249 is an apocalyptic number.

It is an amenable number.

549039566249 is a deficient number, since it is larger than the sum of its proper divisors (1).

549039566249 is an equidigital number, since it uses as much as digits as its factorization.

549039566249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62985600, while the sum is 62.

The spelling of 549039566249 in words is "five hundred forty-nine billion, thirty-nine million, five hundred sixty-six thousand, two hundred forty-nine".