505505555455 has 8 divisors (see below), whose sum is σ = 606874261392. Its totient is φ = 404226047808.

The previous prime is 505505555441. The next prime is 505505555461. The reversal of 505505555455 is 554555505505.

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 505505555455 - 2¹⁹ = 505505031167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505505555399 and 505505555408.

It is a congruent 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, 22287102 + ... + 22309771.

It is an arithmetic number, because the mean of its divisors is an integer number (75859282674).

Almost surely, 2^505505555455 is an apocalyptic number.

505505555455 is a deficient number, since it is larger than the sum of its proper divisors (101368705937).

505505555455 is a wasteful number, since it uses less digits than its factorization.

505505555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44599145.

The product of its (nonzero) digits is 7812500, while the sum is 49.

The spelling of 505505555455 in words is "five hundred five billion, five hundred five million, five hundred fifty-five thousand, four hundred fifty-five".