505050505056 has 144 divisors (see below), whose sum is σ = 1484110712448. Its totient is φ = 162749952000.

The previous prime is 505050505049. The next prime is 505050505061. The reversal of 505050505056 is 650505050505.

505050505056 is a `hidden beast` number, since 5 + 0 + 50 + 50 + 50 + 505 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 505050505056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8693706 + ... + 8751606.

It is an arithmetic number, because the mean of its divisors is an integer number (10306324392).

Almost surely, 2^505050505056 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 505050505056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742055356224).

505050505056 is an abundant number, since it is smaller than the sum of its proper divisors (979060207392).

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

505050505056 is a wasteful number, since it uses less digits than its factorization.

505050505056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58925 (or 58914 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 505050505056 in words is "five hundred five billion, fifty million, five hundred five thousand, fifty-six".