550526 has 4 divisors (see below), whose sum is σ = 825792. Its totient is φ = 275262.

The previous prime is 550519. The next prime is 550531. The reversal of 550526 is 625055.

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

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

550526 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 137630 + ... + 137633.

It is an arithmetic number, because the mean of its divisors is an integer number (206448).

2⁵⁵⁰⁵²⁶ is an apocalyptic number.

550526 is a deficient number, since it is larger than the sum of its proper divisors (275266).

550526 is a wasteful number, since it uses less digits than its factorization.

550526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275265.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 550526 is about 741.9743930891. The cubic root of 550526 is about 81.9582377071.

Subtracting 550526 from its reverse (625055), we obtain a square (74529 = 273²).

The spelling of 550526 in words is "five hundred fifty thousand, five hundred twenty-six".