505550555056 has 20 divisors (see below), whose sum is σ = 979605077800. Its totient is φ = 252749244672.

The previous prime is 505550555047. The next prime is 505550555077. The reversal of 505550555056 is 650555055505.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 505550554997 and 505550555015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466361 + ... + 1778008.

It is an arithmetic number, because the mean of its divisors is an integer number (48980253890).

Almost surely, 2^505550555056 is an apocalyptic number.

It is an amenable number.

505550555056 is a deficient number, since it is larger than the sum of its proper divisors (474054522744).

505550555056 is a wasteful number, since it uses less digits than its factorization.

505550555056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254116 (or 3254110 counting only the distinct ones).

The product of its (nonzero) digits is 2343750, while the sum is 46.

The spelling of 505550555056 in words is "five hundred five billion, five hundred fifty million, five hundred fifty-five thousand, fifty-six".