549039975 has 24 divisors (see below), whose sum is σ = 990269952. Its totient is φ = 266200800.

The previous prime is 549039971. The next prime is 549039983. The reversal of 549039975 is 579930945.

It is a happy number.

It is not a de Polignac number, because 549039975 - 2² = 549039971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549039971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331927 + ... + 333576.

It is an arithmetic number, because the mean of its divisors is an integer number (41261248).

Almost surely, 2^549039975 is an apocalyptic number.

549039975 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

549039975 is a deficient number, since it is larger than the sum of its proper divisors (441229977).

549039975 is a wasteful number, since it uses less digits than its factorization.

549039975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665527 (or 665522 counting only the distinct ones).

The product of its (nonzero) digits is 1530900, while the sum is 51.

The square root of 549039975 is about 23431.6020579046. The cubic root of 549039975 is about 818.8442845406.

The spelling of 549039975 in words is "five hundred forty-nine million, thirty-nine thousand, nine hundred seventy-five".