549540903 has 8 divisors (see below), whose sum is σ = 749761408. Its totient is φ = 357840504.

The previous prime is 549540889. The next prime is 549540991. The reversal of 549540903 is 309045945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 549540903 - 2⁸ = 549540647 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 (549540703) 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 7 ways as a sum of consecutive naturals, for example, 2129875 + ... + 2130132.

It is an arithmetic number, because the mean of its divisors is an integer number (93720176).

Almost surely, 2^549540903 is an apocalyptic number.

549540903 is a deficient number, since it is larger than the sum of its proper divisors (200220505).

549540903 is a wasteful number, since it uses less digits than its factorization.

549540903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260053.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 549540903 is about 23442.2887747762. The cubic root of 549540903 is about 819.0932386942.

The spelling of 549540903 in words is "five hundred forty-nine million, five hundred forty thousand, nine hundred three".