505223602403 has 32 divisors (see below), whose sum is σ = 562597201152. Its totient is φ = 450771148800.

The previous prime is 505223602397. The next prime is 505223602487. The reversal of 505223602403 is 304206322505.

It is a cyclic number.

It is not a de Polignac number, because 505223602403 - 2⁶ = 505223602339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505223602403.

It is not an unprimeable number, because it can be changed into a prime (505223602003) 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 31 ways as a sum of consecutive naturals, for example, 19388063 + ... + 19414103.

It is an arithmetic number, because the mean of its divisors is an integer number (17581162536).

Almost surely, 2^505223602403 is an apocalyptic number.

505223602403 is a deficient number, since it is larger than the sum of its proper divisors (57373598749).

505223602403 is a wasteful number, since it uses less digits than its factorization.

505223602403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26495.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 505223602403 its reverse (304206322505), we get a palindrome (809429924908).

The spelling of 505223602403 in words is "five hundred five billion, two hundred twenty-three million, six hundred two thousand, four hundred three".