5550559979 has 2 divisors, whose sum is σ = 5550559980. Its totient is φ = 5550559978.

The previous prime is 5550559919. The next prime is 5550559981. The reversal of 5550559979 is 9799550555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5550559979 - 2¹² = 5550555883 is a prime.

Together with 5550559981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5550559919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775279989 + 2775279990.

It is an arithmetic number, because the mean of its divisors is an integer number (2775279990).

Almost surely, 2^5550559979 is an apocalyptic number.

5550559979 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550559979 is an equidigital number, since it uses as much as digits as its factorization.

5550559979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15946875, while the sum is 59.

The square root of 5550559979 is about 74502.0803669267. The cubic root of 5550559979 is about 1770.5665968845.

The spelling of 5550559979 in words is "five billion, five hundred fifty million, five hundred fifty-nine thousand, nine hundred seventy-nine".