550769 has 4 divisors (see below), whose sum is σ = 559860. Its totient is φ = 541680.

The previous prime is 550763. The next prime is 550789. The reversal of 550769 is 967055.

Added to its reverse (967055) it gives a square (1517824 = 1232²).

550769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 313600 + 237169 = 560^2 + 487^2 .

It is not a de Polignac number, because 550769 - 2⁸ = 550513 is a prime.

It is a super-2 number, since 2×550769² = 606692982722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550769.

It is not an unprimeable number, because it can be changed into a prime (550763) 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, 4454 + ... + 4575.

It is an arithmetic number, because the mean of its divisors is an integer number (139965).

2⁵⁵⁰⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

550769 is a deficient number, since it is larger than the sum of its proper divisors (9091).

550769 is an equidigital number, since it uses as much as digits as its factorization.

550769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 550769 is about 742.1381273052. The cubic root of 550769 is about 81.9702946140.

Adding to 550769 its reverse (967055), we get a square (1517824 = 1232²).

The spelling of 550769 in words is "five hundred fifty thousand, seven hundred sixty-nine".