505005500545 has 48 divisors (see below), whose sum is σ = 762518570688. Its totient is φ = 318243219840.

The previous prime is 505005500513. The next prime is 505005500579. The reversal of 505005500545 is 545005500505.

It is not a de Polignac number, because 505005500545 - 2⁵ = 505005500513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505005500545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 373750 + ... + 1072240.

It is an arithmetic number, because the mean of its divisors is an integer number (15885803556).

Almost surely, 2^505005500545 is an apocalyptic number.

It is an amenable number.

505005500545 is a deficient number, since it is larger than the sum of its proper divisors (257513070143).

505005500545 is a wasteful number, since it uses less digits than its factorization.

505005500545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698750 (or 698743 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 505005500545 in words is "five hundred five billion, five million, five hundred thousand, five hundred forty-five".