549999965 has 4 divisors (see below), whose sum is σ = 659999964. Its totient is φ = 439999968.

The previous prime is 549999959. The next prime is 550000001. The reversal of 549999965 is 569999945.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 438190489 + 111809476 = 20933^2 + 10574^2 .

It is a cyclic number.

It is not a de Polignac number, because 549999965 - 2²⁴ = 533222749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54999992 + ... + 55000001.

It is an arithmetic number, because the mean of its divisors is an integer number (164999991).

Almost surely, 2^549999965 is an apocalyptic number.

It is an amenable number.

549999965 is a deficient number, since it is larger than the sum of its proper divisors (109999999).

549999965 is a wasteful number, since it uses less digits than its factorization.

549999965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109999998.

The product of its digits is 35429400, while the sum is 65.

The square root of 549999965 is about 23452.0780529146. The cubic root of 549999965 is about 819.3212532211.

The spelling of 549999965 in words is "five hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred sixty-five".