549945967 has 4 divisors (see below), whose sum is σ = 560322360. Its totient is φ = 539569576.

The previous prime is 549945947. The next prime is 549945989. The reversal of 549945967 is 769549945.

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 549945967 - 2⁷ = 549945839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549945947) 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, 5188117 + ... + 5188222.

It is an arithmetic number, because the mean of its divisors is an integer number (140080590).

Almost surely, 2^549945967 is an apocalyptic number.

549945967 is a deficient number, since it is larger than the sum of its proper divisors (10376393).

549945967 is a wasteful number, since it uses less digits than its factorization.

549945967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376392.

The product of its digits is 12247200, while the sum is 58.

The square root of 549945967 is about 23450.9267833917. The cubic root of 549945967 is about 819.2944391849.

The spelling of 549945967 in words is "five hundred forty-nine million, nine hundred forty-five thousand, nine hundred sixty-seven".