55579 has 2 divisors, whose sum is σ = 55580. Its totient is φ = 55578.

The previous prime is 55547. The next prime is 55589. The reversal of 55579 is 97555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55579 - 2⁵ = 55547 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 55579.

It is not a weakly prime, because it can be changed into another prime (55529) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27789 + 27790.

It is an arithmetic number, because the mean of its divisors is an integer number (27790).

2⁵⁵⁵⁷⁹ is an apocalyptic number.

55579 is a deficient number, since it is larger than the sum of its proper divisors (1).

55579 is an equidigital number, since it uses as much as digits as its factorization.

55579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7875, while the sum is 31.

The square root of 55579 is about 235.7519883267. The cubic root of 55579 is about 38.1625081015.

The spelling of 55579 in words is "fifty-five thousand, five hundred seventy-nine".