550747 has 4 divisors (see below), whose sum is σ = 558576. Its totient is φ = 542920.

The previous prime is 550733. The next prime is 550757. The reversal of 550747 is 747055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747055 = 5 ⋅149411.

It is a cyclic number.

It is not a de Polignac number, because 550747 - 2¹⁹ = 26459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550717) 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, 3808 + ... + 3949.

It is an arithmetic number, because the mean of its divisors is an integer number (139644).

2⁵⁵⁰⁷⁴⁷ is an apocalyptic number.

550747 is a deficient number, since it is larger than the sum of its proper divisors (7829).

550747 is an equidigital number, since it uses as much as digits as its factorization.

550747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7828.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 550747 is about 742.1233051185. The cubic root of 550747 is about 81.9692031882.

The spelling of 550747 in words is "five hundred fifty thousand, seven hundred forty-seven".