503385550 has 12 divisors (see below), whose sum is σ = 936297216. Its totient is φ = 201354200.

The previous prime is 503385541. The next prime is 503385569. The reversal of 503385550 is 55583305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5033806 + ... + 5033905.

It is an arithmetic number, because the mean of its divisors is an integer number (78024768).

Almost surely, 2^503385550 is an apocalyptic number.

503385550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

503385550 is a deficient number, since it is larger than the sum of its proper divisors (432911666).

503385550 is a wasteful number, since it uses less digits than its factorization.

503385550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067723 (or 10067718 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 503385550 is about 22436.2552579525. The cubic root of 503385550 is about 795.4879064005.

It can be divided in two parts, 50 and 3385550, that added together give a square (3385600 = 1840²).

The spelling of 503385550 in words is "five hundred three million, three hundred eighty-five thousand, five hundred fifty".