549902 has 4 divisors (see below), whose sum is σ = 824856. Its totient is φ = 274950.

The previous prime is 549883. The next prime is 549911. The reversal of 549902 is 209945.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137474 + ... + 137477.

It is an arithmetic number, because the mean of its divisors is an integer number (206214).

2⁵⁴⁹⁹⁰² is an apocalyptic number.

549902 is a deficient number, since it is larger than the sum of its proper divisors (274954).

549902 is a wasteful number, since it uses less digits than its factorization.

549902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274953.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 549902 is about 741.5537741796. The cubic root of 549902 is about 81.9272604992.

The spelling of 549902 in words is "five hundred forty-nine thousand, nine hundred two".