549205259 has 4 divisors (see below), whose sum is σ = 549339000. Its totient is φ = 549071520.

The previous prime is 549205253. The next prime is 549205309. The reversal of 549205259 is 952502945.

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

It is a cyclic number.

It is not a de Polignac number, because 549205259 - 2⁸ = 549205003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549205253) by changing a digit.

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, 60509 + ... + 68990.

It is an arithmetic number, because the mean of its divisors is an integer number (137334750).

Almost surely, 2^549205259 is an apocalyptic number.

549205259 is a deficient number, since it is larger than the sum of its proper divisors (133741).

549205259 is a wasteful number, since it uses less digits than its factorization.

549205259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133740.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 549205259 is about 23435.1287387119. The cubic root of 549205259 is about 818.9264450911.

The spelling of 549205259 in words is "five hundred forty-nine million, two hundred five thousand, two hundred fifty-nine".