505000505555 has 64 divisors (see below), whose sum is σ = 748862392320. Its totient is φ = 318358757376.

The previous prime is 505000505519. The next prime is 505000505579. The reversal of 505000505555 is 555505000505.

It is a cyclic number.

It is not a de Polignac number, because 505000505555 - 2¹⁰ = 505000504531 is a prime.

It is a super-2 number, since 2×505000505555² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 63 ways as a sum of consecutive naturals, for example, 183435059 + ... + 183437811.

It is an arithmetic number, because the mean of its divisors is an integer number (11700974880).

Almost surely, 2^505000505555 is an apocalyptic number.

505000505555 is a deficient number, since it is larger than the sum of its proper divisors (243861886765).

505000505555 is a wasteful number, since it uses less digits than its factorization.

505000505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260.

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 505000505555 in words is "five hundred five billion, five hundred five thousand, five hundred fifty-five".