550665607 has 2 divisors, whose sum is σ = 550665608. Its totient is φ = 550665606.

The previous prime is 550665587. The next prime is 550665623. The reversal of 550665607 is 706566055.

550665607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550665607 is a prime.

It is a super-2 number, since 2×550665607² = 606465221465356898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550665607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550465607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275332803 + 275332804.

It is an arithmetic number, because the mean of its divisors is an integer number (275332804).

Almost surely, 2^550665607 is an apocalyptic number.

550665607 is a deficient number, since it is larger than the sum of its proper divisors (1).

550665607 is an equidigital number, since it uses as much as digits as its factorization.

550665607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 550665607 is about 23466.2652972304. The cubic root of 550665607 is about 819.6516500729.

The spelling of 550665607 in words is "five hundred fifty million, six hundred sixty-five thousand, six hundred seven".