549421055 has 16 divisors (see below), whose sum is σ = 678300480. Its totient is φ = 427035648.

The previous prime is 549421051. The next prime is 549421057. The reversal of 549421055 is 550124945.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 549421055 - 2² = 549421051 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549421051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17231 + ... + 37359.

It is an arithmetic number, because the mean of its divisors is an integer number (42393780).

Almost surely, 2^549421055 is an apocalyptic number.

549421055 is a deficient number, since it is larger than the sum of its proper divisors (128879425).

549421055 is a wasteful number, since it uses less digits than its factorization.

549421055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20290.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 549421055 is about 23439.7324003496. The cubic root of 549421055 is about 819.0336897003.

The spelling of 549421055 in words is "five hundred forty-nine million, four hundred twenty-one thousand, fifty-five".