505055505056 has 48 divisors (see below), whose sum is σ = 1014642594504. Its totient is φ = 247383112704.

The previous prime is 505055505047. The next prime is 505055505079. The reversal of 505055505056 is 650505550505.

It can be written as a sum of positive squares in 4 ways, for example, as 242792707600 + 262262797456 = 492740^2 + 512116^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879470 + ... + 1335506.

Almost surely, 2^505055505056 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 505055505056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507321297252).

505055505056 is an abundant number, since it is smaller than the sum of its proper divisors (509587089448).

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

505055505056 is a wasteful number, since it uses less digits than its factorization.

505055505056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456753 (or 456745 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 41.

The spelling of 505055505056 in words is "five hundred five billion, fifty-five million, five hundred five thousand, fifty-six".