505561055600 has 60 divisors (see below), whose sum is σ = 1214680090320. Its totient is φ = 202212825600.

The previous prime is 505561055561. The next prime is 505561055633. The reversal of 505561055600 is 6550165505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11661965 + ... + 11705235.

It is an arithmetic number, because the mean of its divisors is an integer number (20244668172).

Almost surely, 2^505561055600 is an apocalyptic number.

505561055600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505561055600 is an abundant number, since it is smaller than the sum of its proper divisors (709119034720).

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

505561055600 is a wasteful number, since it uses less digits than its factorization.

505561055600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72498 (or 72487 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 505561055600 in words is "five hundred five billion, five hundred sixty-one million, fifty-five thousand, six hundred".