550385599 has 4 divisors (see below), whose sum is σ = 563809680. Its totient is φ = 536961520.

The previous prime is 550385593. The next prime is 550385611. The reversal of 550385599 is 995583055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 995583055 = 5 ⋅199116611.

It is a cyclic number.

It is not a de Polignac number, because 550385599 - 2¹⁷ = 550254527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550385593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6711979 + ... + 6712060.

It is an arithmetic number, because the mean of its divisors is an integer number (140952420).

Almost surely, 2^550385599 is an apocalyptic number.

550385599 is a deficient number, since it is larger than the sum of its proper divisors (13424081).

550385599 is a wasteful number, since it uses less digits than its factorization.

550385599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13424080.

The product of its (nonzero) digits is 1215000, while the sum is 49.

The square root of 550385599 is about 23460.2983570116. The cubic root of 550385599 is about 819.5126982733.

The spelling of 550385599 in words is "five hundred fifty million, three hundred eighty-five thousand, five hundred ninety-nine".