505005005555 has 8 divisors (see below), whose sum is σ = 606124699152. Its totient is φ = 403924876128.

The previous prime is 505005005429. The next prime is 505005005621. The reversal of 505005005555 is 555500500505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505005005555 - 2²² = 505000811251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9862952 + ... + 9914021.

It is an arithmetic number, because the mean of its divisors is an integer number (75765587394).

Almost surely, 2^505005005555 is an apocalyptic number.

505005005555 is a deficient number, since it is larger than the sum of its proper divisors (101119693597).

505005005555 is a wasteful number, since it uses less digits than its factorization.

505005005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19782085.

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

The spelling of 505005005555 in words is "five hundred five billion, five million, five thousand, five hundred fifty-five".