505055050520 has 64 divisors (see below), whose sum is σ = 1186394040000. Its totient is φ = 193138620928.

The previous prime is 505055050519. The next prime is 505055050597. The reversal of 505055050520 is 25050550505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652246 + ... + 1933914.

It is an arithmetic number, because the mean of its divisors is an integer number (18537406875).

Almost surely, 2^505055050520 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 505055050520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593197020000).

505055050520 is an abundant number, since it is smaller than the sum of its proper divisors (681338989480).

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

505055050520 is a wasteful number, since it uses less digits than its factorization.

505055050520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283652 (or 283648 counting only the distinct ones).

The product of its (nonzero) digits is 31250, while the sum is 32.

The spelling of 505055050520 in words is "five hundred five billion, fifty-five million, fifty thousand, five hundred twenty".