503688113 has 4 divisors (see below), whose sum is σ = 509347620. Its totient is φ = 498028608.

The previous prime is 503688103. The next prime is 503688151. The reversal of 503688113 is 311886305.

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

It can be written as a sum of positive squares in 2 ways, for example, as 236790544 + 266897569 = 15388^2 + 16337^2 .

It is a cyclic number.

It is not a de Polignac number, because 503688113 - 2¹² = 503684017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503688103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2829620 + ... + 2829797.

It is an arithmetic number, because the mean of its divisors is an integer number (127336905).

Almost surely, 2^503688113 is an apocalyptic number.

It is an amenable number.

503688113 is a deficient number, since it is larger than the sum of its proper divisors (5659507).

503688113 is an equidigital number, since it uses as much as digits as its factorization.

503688113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659506.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 503688113 is about 22442.9969701018. The cubic root of 503688113 is about 795.6472521225.

The spelling of 503688113 in words is "five hundred three million, six hundred eighty-eight thousand, one hundred thirteen".