549911071 has 4 divisors (see below), whose sum is σ = 573820272. Its totient is φ = 526001872.

The previous prime is 549911069. The next prime is 549911081. The reversal of 549911071 is 170119945.

549911071 = 2789² + 2790² + ... + 2857².

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 549911071 - 2¹ = 549911069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 549911071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549911041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11954566 + ... + 11954611.

It is an arithmetic number, because the mean of its divisors is an integer number (143455068).

Almost surely, 2^549911071 is an apocalyptic number.

549911071 is a deficient number, since it is larger than the sum of its proper divisors (23909201).

549911071 is a wasteful number, since it uses less digits than its factorization.

549911071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23909200.

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 549911071 is about 23450.1827498209. The cubic root of 549911071 is about 819.2771097833.

The spelling of 549911071 in words is "five hundred forty-nine million, nine hundred eleven thousand, seventy-one".