550646395 has 16 divisors (see below), whose sum is σ = 730840320. Its totient is φ = 395639424.

The previous prime is 550646387. The next prime is 550646413. The reversal of 550646395 is 593646055.

It is a cyclic number.

It is not a de Polignac number, because 550646395 - 2³ = 550646387 is a prime.

It is a super-2 number, since 2×550646395² = 606422904652992050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112075 + ... + 116884.

It is an arithmetic number, because the mean of its divisors is an integer number (45677520).

Almost surely, 2^550646395 is an apocalyptic number.

550646395 is a deficient number, since it is larger than the sum of its proper divisors (180193925).

550646395 is a wasteful number, since it uses less digits than its factorization.

550646395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229014.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 550646395 is about 23465.8559400675. The cubic root of 550646395 is about 819.6421177721.

The spelling of 550646395 in words is "five hundred fifty million, six hundred forty-six thousand, three hundred ninety-five".