503620423 has 2 divisors, whose sum is σ = 503620424. Its totient is φ = 503620422.

The previous prime is 503620421. The next prime is 503620477. The reversal of 503620423 is 324026305.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 503620423 - 2¹ = 503620421 is a prime.

Together with 503620421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503620421) 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, 251810211 + 251810212.

It is an arithmetic number, because the mean of its divisors is an integer number (251810212).

Almost surely, 2^503620423 is an apocalyptic number.

503620423 is a deficient number, since it is larger than the sum of its proper divisors (1).

503620423 is an equidigital number, since it uses as much as digits as its factorization.

503620423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 503620423 is about 22441.4888766320. The cubic root of 503620423 is about 795.6116085209.

Adding to 503620423 its reverse (324026305), we get a palindrome (827646728).

The spelling of 503620423 in words is "five hundred three million, six hundred twenty thousand, four hundred twenty-three".