550720503 has 24 divisors (see below), whose sum is σ = 815288448. Its totient is φ = 358115472.

The previous prime is 550720483. The next prime is 550720523. The reversal of 550720503 is 305027055.

It is an interprime number because it is at equal distance from previous prime (550720483) and next prime (550720523).

It is not a de Polignac number, because 550720503 - 2¹³ = 550712311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550720523) 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 in 23 ways as a sum of consecutive naturals, for example, 57676 + ... + 66542.

It is an arithmetic number, because the mean of its divisors is an integer number (33970352).

Almost surely, 2^550720503 is an apocalyptic number.

550720503 is a deficient number, since it is larger than the sum of its proper divisors (264567945).

550720503 is a wasteful number, since it uses less digits than its factorization.

550720503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043 (or 9040 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 550720503 is about 23467.4349471773. The cubic root of 550720503 is about 819.6788862644.

Adding to 550720503 its reverse (305027055), we get a palindrome (855747558).

The spelling of 550720503 in words is "five hundred fifty million, seven hundred twenty thousand, five hundred three".