55548579 has 4 divisors (see below), whose sum is σ = 74064776. Its totient is φ = 37032384.

The previous prime is 55548569. The next prime is 55548587. The reversal of 55548579 is 97584555.

It is a happy number.

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

It is not a de Polignac number, because 55548579 - 2²⁰ = 54500003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55548529) 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, 9258094 + ... + 9258099.

It is an arithmetic number, because the mean of its divisors is an integer number (18516194).

Almost surely, 2^55548579 is an apocalyptic number.

55548579 is a deficient number, since it is larger than the sum of its proper divisors (18516197).

55548579 is a wasteful number, since it uses less digits than its factorization.

55548579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18516196.

The product of its digits is 1260000, while the sum is 48.

The square root of 55548579 is about 7453.0919087316. The cubic root of 55548579 is about 381.5554411908. Note that the first 3 decimals are identical.

The spelling of 55548579 in words is "fifty-five million, five hundred forty-eight thousand, five hundred seventy-nine".