505454321534523 has 4 divisors (see below), whose sum is σ = 673939095379368. Its totient is φ = 336969547689680.

The previous prime is 505454321534509. The next prime is 505454321534537. The reversal of 505454321534523 is 325435123454505.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (505454321534509) and next prime (505454321534537).

It is a cyclic number.

It is not a de Polignac number, because 505454321534523 - 2⁴ = 505454321534507 is a prime.

It is a super-2 number, since 2×505454321534523² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505454321533523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84242386922418 + ... + 84242386922423.

It is an arithmetic number, because the mean of its divisors is an integer number (168484773844842).

Almost surely, 2^{505454321534523} is an apocalyptic number.

505454321534523 is a deficient number, since it is larger than the sum of its proper divisors (168484773844845).

505454321534523 is a wasteful number, since it uses less digits than its factorization.

505454321534523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168484773844844.

The product of its (nonzero) digits is 21600000, while the sum is 51.

The spelling of 505454321534523 in words is "five hundred five trillion, four hundred fifty-four billion, three hundred twenty-one million, five hundred thirty-four thousand, five hundred twenty-three".