549855579 has 32 divisors (see below), whose sum is σ = 903745024. Its totient is φ = 289578240.

The previous prime is 549855571. The next prime is 549855583. The reversal of 549855579 is 975558945.

It is a happy number.

It is not a de Polignac number, because 549855579 - 2³ = 549855571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (549855571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239919 + ... + 242199.

It is an arithmetic number, because the mean of its divisors is an integer number (28242032).

Almost surely, 2^549855579 is an apocalyptic number.

549855579 is a deficient number, since it is larger than the sum of its proper divisors (353889445).

549855579 is a wasteful number, since it uses less digits than its factorization.

549855579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187.

The product of its digits is 11340000, while the sum is 57.

The square root of 549855579 is about 23448.9995308968. Note that the first 3 decimals coincide. The cubic root of 549855579 is about 819.2495508699.

The spelling of 549855579 in words is "five hundred forty-nine million, eight hundred fifty-five thousand, five hundred seventy-nine".