505005505554 has 32 divisors (see below), whose sum is σ = 1112127687936. Its totient is φ = 151601763920.

The previous prime is 505005505531. The next prime is 505005505561. The reversal of 505005505554 is 455505500505.

It is a super-2 number, since 2×505005505554² (a number of 24 digits) contains 22 as substring.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 35748072 + ... + 35762195.

It is an arithmetic number, because the mean of its divisors is an integer number (34753990248).

Almost surely, 2^505005505554 is an apocalyptic number.

505005505554 is an abundant number, since it is smaller than the sum of its proper divisors (607122182382).

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

505005505554 is a wasteful number, since it uses less digits than its factorization.

505005505554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71510390.

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 505005505554 in words is "five hundred five billion, five million, five hundred five thousand, five hundred fifty-four".