503303361 has 8 divisors (see below), whose sum is σ = 732077664. Its totient is φ = 305032320.

The previous prime is 503303357. The next prime is 503303399. The reversal of 503303361 is 163303305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 503303361 - 2² = 503303357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503303561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7625776 + ... + 7625841.

It is an arithmetic number, because the mean of its divisors is an integer number (91509708).

Almost surely, 2^503303361 is an apocalyptic number.

It is an amenable number.

503303361 is a deficient number, since it is larger than the sum of its proper divisors (228774303).

503303361 is a wasteful number, since it uses less digits than its factorization.

503303361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15251631.

The product of its (nonzero) digits is 2430, while the sum is 24.

The square root of 503303361 is about 22434.4235718237. The cubic root of 503303361 is about 795.4446102867. Note that the first 3 decimals are identical.

Adding to 503303361 its reverse (163303305), we get a palindrome (666606666).

The spelling of 503303361 in words is "five hundred three million, three hundred three thousand, three hundred sixty-one".