550731326 has 4 divisors (see below), whose sum is σ = 826096992. Its totient is φ = 275365662.

The previous prime is 550731323. The next prime is 550731353. The reversal of 550731326 is 623137055.

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

It is a junction number, because it is equal to n+sod(n) for n = 550731292 and 550731301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550731323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137682830 + ... + 137682833.

It is an arithmetic number, because the mean of its divisors is an integer number (206524248).

Almost surely, 2^550731326 is an apocalyptic number.

550731326 is a deficient number, since it is larger than the sum of its proper divisors (275365666).

550731326 is a wasteful number, since it uses less digits than its factorization.

550731326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275365665.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 550731326 is about 23467.6655421880. The cubic root of 550731326 is about 819.6842557918.

The spelling of 550731326 in words is "five hundred fifty million, seven hundred thirty-one thousand, three hundred twenty-six".