505243433256 has 32 divisors (see below), whose sum is σ = 1263126571200. Its totient is φ = 168412079360.

The previous prime is 505243433243. The next prime is 505243433257. The reversal of 505243433256 is 652334342505.

It is not an unprimeable number, because it can be changed into a prime (505243433257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2600005 + ... + 2787563.

It is an arithmetic number, because the mean of its divisors is an integer number (39472705350).

Almost surely, 2^505243433256 is an apocalyptic number.

It is an amenable number.

505243433256 is an abundant number, since it is smaller than the sum of its proper divisors (757883137944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505243433256 is a wasteful number, since it uses less digits than its factorization.

505243433256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299809 (or 299805 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 42.

The spelling of 505243433256 in words is "five hundred five billion, two hundred forty-three million, four hundred thirty-three thousand, two hundred fifty-six".