550566239 has 2 divisors, whose sum is σ = 550566240. Its totient is φ = 550566238.

The previous prime is 550566227. The next prime is 550566259. The reversal of 550566239 is 932665055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550566239 - 2⁴ = 550566223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550566196 and 550566205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550566259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275283119 + 275283120.

It is an arithmetic number, because the mean of its divisors is an integer number (275283120).

Almost surely, 2^550566239 is an apocalyptic number.

550566239 is a deficient number, since it is larger than the sum of its proper divisors (1).

550566239 is an equidigital number, since it uses as much as digits as its factorization.

550566239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243000, while the sum is 41.

The square root of 550566239 is about 23464.1479495847. The cubic root of 550566239 is about 819.6023448662.

The spelling of 550566239 in words is "five hundred fifty million, five hundred sixty-six thousand, two hundred thirty-nine".