505534204423 has 2 divisors, whose sum is σ = 505534204424. Its totient is φ = 505534204422.

The previous prime is 505534204387. The next prime is 505534204471. The reversal of 505534204423 is 324402435505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505534204423 - 2²¹ = 505532107271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505534204823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252767102211 + 252767102212.

It is an arithmetic number, because the mean of its divisors is an integer number (252767102212).

Almost surely, 2^505534204423 is an apocalyptic number.

505534204423 is a deficient number, since it is larger than the sum of its proper divisors (1).

505534204423 is an equidigital number, since it uses as much as digits as its factorization.

505534204423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 505534204423 its reverse (324402435505), we get a palindrome (829936639928).

The spelling of 505534204423 in words is "five hundred five billion, five hundred thirty-four million, two hundred four thousand, four hundred twenty-three".