503688253 has 2 divisors, whose sum is σ = 503688254. Its totient is φ = 503688252.

The previous prime is 503688193. The next prime is 503688281. The reversal of 503688253 is 352886305.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503688249 + 4 = 22443^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 503688253 - 2¹⁷ = 503557181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503688953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251844126 + 251844127.

It is an arithmetic number, because the mean of its divisors is an integer number (251844127).

Almost surely, 2^503688253 is an apocalyptic number.

It is an amenable number.

503688253 is a deficient number, since it is larger than the sum of its proper divisors (1).

503688253 is an equidigital number, since it uses as much as digits as its factorization.

503688253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 503688253 is about 22443.0000891146. Note that the first 4 decimals coincide. The cubic root of 503688253 is about 795.6473258391.

The spelling of 503688253 in words is "five hundred three million, six hundred eighty-eight thousand, two hundred fifty-three".