503415023 has 2 divisors, whose sum is σ = 503415024. Its totient is φ = 503415022.

The previous prime is 503414993. The next prime is 503415037. The reversal of 503415023 is 320514305.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 503415023 - 2⁶ = 503414959 is a prime.

It is a super-3 number, since 3×503415023³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 503415023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503415623) by changing a digit.

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 as a sum of consecutive naturals, namely, 251707511 + 251707512.

It is an arithmetic number, because the mean of its divisors is an integer number (251707512).

Almost surely, 2^503415023 is an apocalyptic number.

503415023 is a deficient number, since it is larger than the sum of its proper divisors (1).

503415023 is an equidigital number, since it uses as much as digits as its factorization.

503415023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 503415023 is about 22436.9120647205. The cubic root of 503415023 is about 795.5034312518.

Adding to 503415023 its reverse (320514305), we get a palindrome (823929328).

The spelling of 503415023 in words is "five hundred three million, four hundred fifteen thousand, twenty-three".