550808641 has 4 divisors (see below), whose sum is σ = 551904192. Its totient is φ = 549713092.

The previous prime is 550808627. The next prime is 550808693. The reversal of 550808641 is 146808055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550808641 - 2¹¹ = 550806593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550808641.

It is not an unprimeable number, because it can be changed into a prime (550808611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547021 + ... + 548026.

It is an arithmetic number, because the mean of its divisors is an integer number (137976048).

Almost surely, 2^550808641 is an apocalyptic number.

It is an amenable number.

550808641 is a deficient number, since it is larger than the sum of its proper divisors (1095551).

550808641 is a wasteful number, since it uses less digits than its factorization.

550808641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095550.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 550808641 is about 23469.3127509094. The cubic root of 550808641 is about 819.7226114109.

The spelling of 550808641 in words is "five hundred fifty million, eight hundred eight thousand, six hundred forty-one".