549890027 has 4 divisors (see below), whose sum is σ = 549939936. Its totient is φ = 549840120.

The previous prime is 549890009. The next prime is 549890053. The reversal of 549890027 is 720098945.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 720098945 = 5 ⋅144019789.

It is a cyclic number.

It is not a de Polignac number, because 549890027 - 2²⁸ = 281454571 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 549890027.

It is not an unprimeable number, because it can be changed into a prime (549850027) 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, 323 + ... + 33164.

It is an arithmetic number, because the mean of its divisors is an integer number (137484984).

Almost surely, 2^549890027 is an apocalyptic number.

549890027 is a deficient number, since it is larger than the sum of its proper divisors (49909).

549890027 is a wasteful number, since it uses less digits than its factorization.

549890027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49908.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 549890027 is about 23449.7340496646. The cubic root of 549890027 is about 819.2666589496.

The spelling of 549890027 in words is "five hundred forty-nine million, eight hundred ninety thousand, twenty-seven".