550229761 has 4 divisors (see below), whose sum is σ = 550494000. Its totient is φ = 549965524.

The previous prime is 550229749. The next prime is 550229767. The reversal of 550229761 is 167922055.

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 550229761 - 2¹³ = 550221569 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 550229761.

It is not an unprimeable number, because it can be changed into a prime (550229767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128971 + ... + 133168.

It is an arithmetic number, because the mean of its divisors is an integer number (137623500).

Almost surely, 2^550229761 is an apocalyptic number.

It is an amenable number.

550229761 is a deficient number, since it is larger than the sum of its proper divisors (264239).

550229761 is a wasteful number, since it uses less digits than its factorization.

550229761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264238.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 550229761 is about 23456.9768086171. The cubic root of 550229761 is about 819.4353444595.

The spelling of 550229761 in words is "five hundred fifty million, two hundred twenty-nine thousand, seven hundred sixty-one".