505005550056 has 96 divisors (see below), whose sum is σ = 1568675534400. Its totient is φ = 143773781760.

The previous prime is 505005550037. The next prime is 505005550057. The reversal of 505005550056 is 650055500505.

505005550056 is a `hidden beast` number, since 5 + 0 + 50 + 0 + 5 + 550 + 0 + 56 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 505005550056.

It is not an unprimeable number, because it can be changed into a prime (505005550057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1641286 + ... + 1924533.

It is an arithmetic number, because the mean of its divisors is an integer number (16340370150).

Almost surely, 2^505005550056 is an apocalyptic number.

505005550056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

505005550056 is an abundant number, since it is smaller than the sum of its proper divisors (1063669984344).

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

505005550056 is a wasteful number, since it uses less digits than its factorization.

505005550056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566119 (or 3566112 counting only the distinct ones).

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

The spelling of 505005550056 in words is "five hundred five billion, five million, five hundred fifty thousand, fifty-six".