549520687 has 4 divisors (see below), whose sum is σ = 549567760. Its totient is φ = 549473616.

The previous prime is 549520661. The next prime is 549520691. The reversal of 549520687 is 786025945.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 549520687 - 2¹¹ = 549518639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549520187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8614 + ... + 34252.

It is an arithmetic number, because the mean of its divisors is an integer number (137391940).

Almost surely, 2^549520687 is an apocalyptic number.

549520687 is a deficient number, since it is larger than the sum of its proper divisors (47073).

549520687 is a wasteful number, since it uses less digits than its factorization.

549520687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47072.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 549520687 is about 23441.8575842445. The cubic root of 549520687 is about 819.0831945575.

The spelling of 549520687 in words is "five hundred forty-nine million, five hundred twenty thousand, six hundred eighty-seven".