505055431848 has 256 divisors, whose sum is σ = 1414560153600. Its totient is φ = 148995624960.

The previous prime is 505055431843. The next prime is 505055431871. The reversal of 505055431848 is 848134550505.

It is a junction number, because it is equal to n+sod(n) for n = 505055431797 and 505055431806.

It is not an unprimeable number, because it can be changed into a prime (505055431843) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 412963765 + ... + 412964987.

It is an arithmetic number, because the mean of its divisors is an integer number (5525625600).

Almost surely, 2^505055431848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505055431848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707280076800).

505055431848 is an abundant number, since it is smaller than the sum of its proper divisors (909504721752).

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

505055431848 is a wasteful number, since it uses less digits than its factorization.

505055431848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 48.

The spelling of 505055431848 in words is "five hundred five billion, fifty-five million, four hundred thirty-one thousand, eight hundred forty-eight".