55543579 has 16 divisors (see below), whose sum is σ = 68560128. Its totient is φ = 43818912.

The previous prime is 55543571. The next prime is 55543591. The reversal of 55543579 is 97534555.

It is a cyclic number.

It is not a de Polignac number, because 55543579 - 2³ = 55543571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55543571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41844 + ... + 43150.

It is an arithmetic number, because the mean of its divisors is an integer number (4285008).

Almost surely, 2^55543579 is an apocalyptic number.

55543579 is a deficient number, since it is larger than the sum of its proper divisors (13016549).

55543579 is a wasteful number, since it uses less digits than its factorization.

55543579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its digits is 472500, while the sum is 43.

The square root of 55543579 is about 7452.7564699244. The cubic root of 55543579 is about 381.5439927464.

The spelling of 55543579 in words is "fifty-five million, five hundred forty-three thousand, five hundred seventy-nine".