505500505555 has 8 divisors (see below), whose sum is σ = 615654347472. Its totient is φ = 398364577248.

The previous prime is 505500505519. The next prime is 505500505621. The reversal of 505500505555 is 555505005505.

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 505500505555 - 2²³ = 505492116947 is a prime.

It is a super-2 number, since 2×505500505555² (a number of 24 digits) contains 22 as substring.

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, 754478032 + ... + 754478701.

It is an arithmetic number, because the mean of its divisors is an integer number (76956793434).

Almost surely, 2^505500505555 is an apocalyptic number.

505500505555 is a deficient number, since it is larger than the sum of its proper divisors (110153841917).

505500505555 is a wasteful number, since it uses less digits than its factorization.

505500505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508956805.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 505500505555 in words is "five hundred five billion, five hundred million, five hundred five thousand, five hundred fifty-five".