550323101 has 4 divisors (see below), whose sum is σ = 554282400. Its totient is φ = 546363804.

The previous prime is 550323091. The next prime is 550323107. The reversal of 550323101 is 101323055.

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 550323101 - 2¹⁰ = 550322077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550323107) 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, 1979441 + ... + 1979718.

It is an arithmetic number, because the mean of its divisors is an integer number (138570600).

Almost surely, 2^550323101 is an apocalyptic number.

It is an amenable number.

550323101 is a deficient number, since it is larger than the sum of its proper divisors (3959299).

550323101 is a wasteful number, since it uses less digits than its factorization.

550323101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959298.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 550323101 is about 23458.9663242011. The cubic root of 550323101 is about 819.4816776921.

Adding to 550323101 its reverse (101323055), we get a palindrome (651646156).

The spelling of 550323101 in words is "five hundred fifty million, three hundred twenty-three thousand, one hundred one".